Cited by 165Schizophrenia research and treatmentAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesNeurotransmitter Receptor Influence on Behavior

A transdiagnostic perspective on social anhedonia

Open access
Barkus, Emma, Badcock, Johanna C.·2019·Frontiers in Psychiatry

Abstract

Humans are highly social beings, yet people with social anhedonia experience reduced interest in or reward from social situations. Social anhedonia is a key facet of schizotypal personality, an important symptom of schizophrenia, and increasingly recognized as an important feature in a range of other psychological disorders. However, to date, there has been little examination of the similarities and differences in social anhedonia across diagnostic borders. Here, our goal was to conduct a selective review of social anhedonia in different psychological and life course contexts, including the psychosis continuum, depressive disorder, posttraumatic stress disorder, eating disorders, and autism spectrum disorders, along with developmental and neurobiological factors. Current evidence suggests that the nature and expression of social anhedonia vary across psychological disorders with some groups showing deficient learning about, enjoyment from, and anticipation of the pleasurable aspects of social interactions, while for others, some of these components appear to remain intact. However, study designs and methodologies are diverse, the roles of developmental and neurobiological factors are not routinely considered, and direct comparisons between diagnostic groups are rare-which prevents a more nuanced understanding of the underlying mechanisms involved. Future studies, parsing the wanting, liking, and learning components of social reward, will help to fill gaps in the current knowledge base. Consistent across disorders is diminished pleasure from social situations, subsequent withdrawal, and poorer social functioning in those who express social anhedonia. Nonetheless, feelings of loneliness often remain, which suggests the need for social connection is not entirely absent. Adolescence is a particularly important period of social and neural development and may provide a valuable window on the developmental origins of social anhedonia. Adaptive social functioning is key to recovery from mental health disorders; therefore, understanding the intricacies of social anhedonia will help to inform treatment and prevention strategies for a range of diagnostic categories.

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Written from the paper’s full text.

TL;DR

This selective review synthesizes evidence on social anhedonia across the psychosis continuum, depressive disorders, eating disorders, PTSD, and autism spectrum conditions, arguing that its nature and expression vary by diagnosis while diminished social pleasure, withdrawal, and poorer social functioning recur consistently. The author calls for future work that parses the wanting, liking, and learning components of social reward and directly compares diagnostic groups.

Key findings

  • Social anhedonia is detectable across multiple disorders and in the general population, with patient groups generally reporting higher levels than healthy controls; however, some studies report patients with active depression score higher than patients with schizophrenia (69), while others report schizophrenia patients score higher than bipolar patients, who both exceed controls (196).
  • Component profiles differ by group: the psychosis continuum is broadly characterized by deficits in anticipatory but not consummatory reward (though not consistently) (59), while PTSD (121), depression (74), and ASD appear to involve difficulties in both, and eating disorders show a complex, inconsistent picture.
  • Social anhedonia may be present at clinically significant levels in approximately a third of patients with depression (70), and in eating disorders it is highly correlated with illness chronicity and predicts social and occupational functioning problems (97); recovered AN patients show intermediate levels.
  • Loneliness remains elevated in socially anhedonic individuals across nonclinical, psychosis, and ASD samples (39, 64, 151), suggesting the need for social connection is not entirely absent despite reduced pleasure.

Methods

Selective literature review; studies were included if they focused on social anhedonia or on anticipatory and consummatory components of reward and hedonic responses. Coverage spans the psychosis continuum (nonclinical and clinical samples), depressive disorders, eating disorders, PTSD, autism spectrum conditions, genetics/neural mechanisms and neurodegenerative disorders, and developmental perspectives. No systematic search protocol, meta-analysis, or quantitative synthesis is reported.

Limitations

The paper states that study designs and methodologies are diverse, developmental and neurobiological factors are not routinely considered, and direct comparisons between diagnostic groups are rare; it also notes that studies are largely correlational or observational, that there are no recognized clinically relevant cutoffs for most measures, and that reliance on self-report is problematic given potential biases in self-awareness. Evident from the text: the review is explicitly "selective" rather than systematic, so no formal risk-of-bias assessment or exhaustive search is described, and the author notes the psychosis continuum literature is the largest but also the most inconsistent in its findings.

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Integrity signals

Registry

Crossref · 10.3389/fpsyt.2019.00216

Cites

Statistics

Nothing to recompute.

Claims the paper makes

0 of 217 cited sources checked · 0 supported · 0 flagged

  • Premisenone given

    Study designs and methodologies in social anhedonia research are diverse.

    “However, study designs and methodologies are diverse, the roles of developmental and neurobiological factors are not routinely considered, and direct comparisons between diagnostic groups are rare—which prevents a more nuanced understanding of the underlying mechanisms involved.”
    Quote in the paperSubstantial claim
  • Premisenone given

    Feelings of loneliness often remain in those who express social anhedonia.

    “Nonetheless, feelings of loneliness often remain, which suggests the need for social connection is not entirely absent.”
    Quote in the paperNot a substantial claim
  • Premisecitation

    Social anhedonia is increasingly recognized as an important feature in a range of other psychological disorders.

    “Social anhedonia is a key facet of schizotypal personality, an important symptom of schizophrenia, and increasingly recognized as an important feature in a range of other psychological disorders.”
    • Also stated in: § Introduction · plain
      “Although social anhedonia is a key element of schizotypy and schizophrenia (6, 12, 13), it is increasingly recognized transdiagnostically (14), spurring the development”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [14] Miettunen, 2012, Predicting depression with psychopathology and temperament traits: the northern Finland 1966 birth cohort, Depress Res Treat source

      Not checked in the free run.

  • Interpretationreasoning

    The persistence of loneliness in people with social anhedonia suggests that the need for social connection is not entirely absent.

    “Nonetheless, feelings of loneliness often remain, which suggests the need for social connection is not entirely absent.”
    Quote in the paperSubstantial claim
  • Premisenone given

    Direct comparisons between diagnostic groups in social anhedonia research are rare.

    “However, study designs and methodologies are diverse, the roles of developmental and neurobiological factors are not routinely considered, and direct comparisons between diagnostic groups are rare—which prevents a more nuanced understanding of the underlying mechanisms involved.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. 24
  • May combine two claims. 83
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    Premisecitation

    Social connection buffers mental well-being.

    “Understanding the nature of this need is central to appreciating how social connection buffers mental well-being (3).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [3] Cacioppo, 2015, Loneliness: clinical import and interventions, Perspect Psychol Sci source

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  • May combine two claims.

    Premisecitation

    Social anhedonia is a key facet of schizotypal personality and an important symptom of schizophrenia.

    “Social anhedonia is a key facet of schizotypal personality, an important symptom of schizophrenia, and increasingly recognized as an important feature in a range of other psychological disorders.”
    • Also stated in: § Introduction · plain
      “Although social anhedonia is a key element of schizotypy and schizophrenia (6, 12, 13), it is increasingly recognized transdiagnostically (14), spurring the development”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [6] Kwapil, 1998, Social anhedonia as a predictor of the development of schizophrenia-spectrum disorders, J Abnorm Psychol source

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    • cites [12] Gooding, 2005, Clinical status of at-risk individuals 5 years later: further validation of the psychometric high-risk strategy, J Abnorm Child Psychol source

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    • cites [13] Gooding, 2007, Rates of avoidant, schizotypal, schizoid and paranoid personality disorders in psychometric high-risk groups at 5-year follow-up, Schizophr Res source

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  • May combine two claims.

    Interpretationnone given

    The nature and expression of social anhedonia vary across psychological disorders, with some groups showing deficient learning about, enjoyment from, and anticipation of the pleasurable aspects of social interactions, while for others some of these components appear intact.

    “Current evidence suggests that the nature and expression of social anhedonia vary across psychological disorders with some groups showing deficient learning about, enjoyment from, and anticipation of the pleasurable aspects of social interactions, while for others, some of these components appear to remain intact.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationnone given

    Consistent across disorders is diminished pleasure from social situations, subsequent withdrawal, and poorer social functioning in those who express social anhedonia.

    “Consistent across disorders is diminished pleasure from social situations, subsequent withdrawal, and poorer social functioning in those who express social anhedonia.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    The need to belong is fundamental to human behavior, shaping motivation for and maintenance of social relationships.

    “The need to belong is fundamental to human behavior, shaping our motivation for and maintenance of social relationships (1, 2).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [1] Baumeister, 1995, The need to belong: desire for interpersonal attachments as a fundamental human motivation, Psychol Bull source

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    • cites [2] DeWall, 2011, Belongingness as a core personality trait: how social exclusion influences social functioning and personality expression, J Pers source

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  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationreasoning

    Understanding the intricacies of social anhedonia will help to inform treatment and prevention strategies for a range of diagnostic categories.

    “Adaptive social functioning is key to recovery from mental health disorders; therefore, understanding the intricacies of social anhedonia will help to inform treatment and prevention strategies for a range of diagnostic categories.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: Adaptive social functioning is key to recovery from mental health disorders.
  • May combine two claims.

    Interpretationreasoning

    The diversity of study designs and methodologies, the lack of routine consideration of developmental and neurobiological factors, and the rarity of direct comparisons between diagnostic groups prevent a more nuanced understanding of the underlying mechanisms involved in social anhedonia.

    “However, study designs and methodologies are diverse, the roles of developmental and neurobiological factors are not routinely considered, and direct comparisons between diagnostic groups are rare—which prevents a more nuanced understanding of the underlying mechanisms involved.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Social anhedonia is associated with social withdrawal but is distinct from social anxiety, where withdrawal from social situations is driven by fear of negative evaluation rather than lack of reward from social situations.

    “While social anhedonia is associated with social withdrawal, it is distinct from social anxiety, where withdrawal from social situations is driven by a fear of negative evaluation, rather than lack of reward from social situations.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [9] Silvia, 2011, Aberrant asociality: how individual differences in social anhedonia illuminate the need to belong, J Pers source

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  • Probably not a substantial claim: may not pass S4 (based).

    Interpretationreasoning

    Social anhedonia is not merely a reflection of diminished social interest, but at its core entails a reduced positive appraisal of all aspects of interpersonal relationships.

    “In short, social anhedonia is not merely a reflection of diminished social interest, but at its core entails a reduced positive appraisal of all aspects of interpersonal relationships.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Social anhedonia is not simply an extreme form of introversion; it is comparable to low social closeness captured in the personality literature.

    “Similarly, social anhedonia is not simply an extreme form of introversion, which is characterized by low positive emotion and a preference for solitude (10). Rather, it seems comparable to (low) social closeness captured in the personality literature (11).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [10] Martin, 2016, Social anhedonia is not just extreme introversion: empirical evidence of distinct constructs, J Pers Disord source

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    • cites [11] Olino, 2016, A comparison of psychometric and convergent validity for social anhedonia and social closeness, Psychol Assess source

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  • Probably not a substantial claim: may not pass S4 (based).

    Premisenone given

    Pleasure, reward, learning, anhedonia, and social anhedonia are all distinct concepts.

    “It is recognized that pleasure, reward, learning, anhedonia, and social anhedonia are all distinct concepts.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    A third component, 'learning,' ensures that individuals pair their social experiences with positive pleasurable emotions and consequently seek out similar future experiences.

    “A third component, “learning,” ensures that individuals pair their social experiences with positive pleasurable emotions and consequently seek out similar future experiences (27).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [27] Berridge, 2008, Affective neuroscience of pleasure: reward in humans and animals, Psychopharmacology source

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    Interpretationcitation

    Understanding which components of cognitive processing are altered in people with social anhedonia, regardless of diagnostic category, could assist in improving social functioning and therapeutic outcomes.

    “Understanding which components of cognitive processing are altered in people with social anhedonia—regardless of diagnostic category—could assist in improving social functioning (30, 31) and therapeutic outcomes (32).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites [30] Brown, 2007, When the need to belong goes wrong: the expression of social anhedonia and social anxiety in daily life, Psychol Sci source

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    • cites [31] Assaad, 2016, J Pers source

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    • cites [32] Gutkovich, 2014

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    Premisecitation

    The continuum model posits that psychotic disorders comprise an extended phenotype of risk, with diagnosable disorders such as schizophrenia at one extreme end and nonclinical high, average, and low levels of schizotypy at the other.

    “Though subject to much debate, the continuum model posits that psychotic disorders comprise an extended phenotype of risk, with diagnosable disorders such as schizophrenia at one extreme end and nonclinical high, average, and low levels of schizotypy (associated with decreasing levels of psychosis risk) at the other (33).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [33] Shevlin, 2007, The distribution of positive psychosis-like symptoms in the population: a latent class analysis of the National Comorbidity Survey, Schizophr Res source

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    Premisecitation

    There is a need to understand specific types of anhedonia.

    “Consequently, there is a need to understand specific types of anhedonia (29), which drives the encompassing nature of the current review.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [29] Romer Thomsen, 2015, Reconceptualizing anhedonia: novel perspectives on balancing the pleasure networks in the human brain, Front Behav Neurosci source

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    Premisecitation

    In the psychosis continuum literature, social anhedonia is a feature of the negative dimension and is thought to be trait-like, enduring and stable over the illness course irrespective of symptom fluctuation.

    “In the psychosis continuum literature, social anhedonia is a feature of the negative dimension and is thought to be trait-like, enduring and stable over the illness course irrespective of symptom fluctuation (5, 35).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [5] Blanchard, 2001, Diagnostic differences in social anhedonia: A longitudinal study of schizophrenia and major depressive disorder, J Abnorm Child Psychol source

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    • cites [35] Fonseca-Pedrero, 2014, Measuring anhedonia in schizophrenia-spectrum disorders: a selective update source

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    Premisecitation

    Underlying schizotypy is a multidimensional structure of personality traits broadly similar to the symptom presentation observed in psychotic disorders, supporting structural continuity between clinical and nonclinical experiences.

    “Underlying schizotypy is a multidimensional structure of personality traits broadly similar to the symptom presentation observed in psychotic disorders, lending further support to structural continuity between clinical and nonclinical experiences [see also Ref. (34)].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [34] Thomas, 2018, Do schizotypy dimensions reflect the symptoms of schizophrenia, Aust N Z J Psychiatry source

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  • Probably not a substantial claim: may not pass S4 (based).

    Premisenone given

    A synthesis of current evidence on social anhedonia is lacking.

    “Yet, despite the potential significance of social anhedonia in both clinical and nonclinical groups, a synthesis of current evidence is lacking.”
    Quote in the paperNot a substantial claim
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    Premisecitation

    Improving working memory capacity in those with social anhedonia from the general population improves the anticipatory component of reward and leads to upregulation of brain regions related to monitoring and reward.

    “In addition, improving working memory capacity in those with social anhedonia from the general population has been reported to improve the anticipatory component of reward and lead to upregulation of brain regions related to monitoring and reward (43, 44).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [43] Li, 2016, The neural transfer effect of working memory training to enhance hedonic processing in individuals with social anhedonia, Sci Rep source

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    • cites [44] Li, 2016, The effects of working memory training on enhancing hedonic processing to affective rewards in individuals with high social anhedonia, Psychiatry Res source

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  • May combine two claims.

    Premisecitation

    Self-reported social anhedonia is associated with less willingness to engage in social interactions, reduced social skills, and less positive responses to an experimental social interaction.

    “Llerena et al. (38) reported that self-reported social anhedonia was associated with less willingness to engage in social interactions, reduced social skills, and less positive responses to an experimental social interaction.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [38] Llerena, 2012, Social anhedonia and affiliation: examining behavior and subjective reactions within a social interaction, Psychiatry Res source

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    Premisecitation

    Neurocognitive deficits are present in some healthy individuals who express social anhedonia, although these cognitive deficits do not appear to be related to general psychological, social, or occupational functioning.

    “Neurocognitive deficits are present in some healthy individuals who express social anhedonia, although these cognitive deficits do not appear to be related to general (psychological, social, or occupational) functioning (40).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [40] Cohen, 2012, Neuropsychological functioning and social anhedonia: three-year follow-up data from a longitudinal community high risk study, J Psychiatr Res source

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  • May combine two claims.

    Interpretationreasoning

    In people with social anhedonia, the enjoyment of or wanting for social interaction is low or subjectively dampened but not entirely absent, since reduction below the desired level still triggers a sense of absence and the pain of loneliness.

    “This suggests that while the enjoyment of, or wanting for, social interaction in people with social anhedonia is low, or subjectively dampened, it is not entirely absent, since reduction below the desired level still triggers a sense of absence and the pain of loneliness.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Within the general population, social anhedonia is associated with negative social outcomes and is predictive of the risk of developing schizophrenia in the future.

    “Within the general population, social anhedonia is associated with negative social outcomes, indicating poor engagement, maintenance, and affiliation for interpersonal relationships (45), and is predictive of the risk of developing schizophrenia in the future (13, 45).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [45] Kwapil, 2013, Prediction of psychopathology and functional impairment by positive and negative schizotypy in the Chapmans’ ten-year longitudinal study, J Abnorm Child Psychol source

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    • cites [13] Gooding, 2007, Rates of avoidant, schizotypal, schizoid and paranoid personality disorders in psychometric high-risk groups at 5-year follow-up, Schizophr Res source

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  • May combine two claims.

    Premisecitation

    Participants scoring highly on social anhedonia are less able to use social context and have poorer performance when social context is relevant in tasks assessing social cognition.

    “The results from Pflum and Gooding (42) support this idea, since participants scoring highly on social anhedonia were less able to use social context and therefore had poorer performance when it was relevant in tasks assessing social cognition.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [42] Pflum, 2018, Context matters: social cognition task performance in psychometric schizotypes, Psychiatry Res source

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    Premisecitation

    High social anhedonia is associated with poorer performance on a standard assessment of attentional vigilance, and attentional control mediates the relationship between social anhedonia and social functioning.

    “Cohen et al. (40) reported that those scoring highly on social anhedonia had poorer performance on a standard assessment of attentional vigilance; similarly, Tully et al. (41) found that attentional control mediated the relationship between social anhedonia and social functioning.”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [40] Cohen, 2012, Neuropsychological functioning and social anhedonia: three-year follow-up data from a longitudinal community high risk study, J Psychiatr Res source

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    • cites [41] Tully, 2014, Attentional control mediates the relationship between social anhedonia and social impairment, Front Psychol source

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    Premisecitation

    People from the general healthy community with high levels of social anhedonia report fewer personal relationships, are less likely to be in intimate relationships, prefer to be alone, and are less committed to and experience fewer positive feelings toward their partner when in a relationship.

    “People drawn from the general healthy community with high levels of social anhedonia report fewer personal relationships (30, 36), are less likely to be in intimate relationships (37), prefer to be alone (30), are less committed to, and experience fewer positive feelings toward, their partner when in a relationship (31).”
    Quote in the paperSubstantial claim0 of 4 sources checked
    • cites [30] Brown, 2007, When the need to belong goes wrong: the expression of social anhedonia and social anxiety in daily life, Psychol Sci source

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    • cites [36] Blanchard, 2011, Social anhedonia and schizotypy in a community sample: the Maryland longitudinal study of schizotypy, Schizophr Bull source

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    • cites [37] Mishlove, 1985, Social anhedonia in the prediction of psychosis proneness, J Abnorm Psychol source

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    • cites [31] Assaad, 2016, J Pers source

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    Premisecitation

    People from the general population who score highly on social anhedonia report difficulties in controlling the effects of emotional information on behavior, less positive affect in response to positive pictures, videos, and words, and rate sad and neutral faces more negatively.

    “People from the general population who score highly on social anhedonia report difficulties in controlling the effects of emotional information on behavior (50, 51), less positive affect in response to positive pictures, videos, and words (52–54), and rated sad and neutral faces more negatively (55).”
    Quote in the paperSubstantial claim0 of 6 sources checked
    • cites [50] Martin, 2012, Social anhedonia, but not positive schizotypy, is associated with poor affective control, Pers Disord source

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    • cites [51] Tully, 2012, Impaired executive control of emotional information in social anhedonia, Psychiatry Res source

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    • cites [52] Kerns, 2008, Social and physical anhedonia and valence and arousal aspects of emotional experience, J Abnorm Psychol source

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    • cites [53] Leung, 2010, Is social anhedonia related to emotional responsivity and expressivity? A laboratory study in women, Schizophr Res source

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    • cites [54] Mathews, 2006, Episodic memory for emotional and non-emotional words in individuals with anhedonia, Psychiatry Res source

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    • cites [55] Harvey, 2009, Relation between emotional face memory and social anhedonia in schizophrenia, J Psychiatry Neurosci

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  • May combine two claims.

    Premisecitation

    In patients with schizophrenia, higher ratings on social anhedonia are associated with reduced feelings of interpersonal closeness and less willingness to interact, with subjective responses during interactions with the experimental partner being related to social functioning in general.

    “Using an experimental social interaction paradigm, McCarthy et al. (47) reported that in patients with schizophrenia, higher ratings on social anhedonia were associated with reduced feelings of interpersonal closeness and less willingness to interact, with subjective responses during interactions with the experimental partner being related to social functioning in general.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [47] McCarthy, 2018, Negative symptoms and the formation of social affiliative bonds in schizophrenia, Schizophr Res source

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    Premisecitation

    Patients with schizophrenia and schizoaffective disorder who had high levels of social anhedonia had higher levels of symptomatology and lower levels of self-esteem, self-efficacy, subjective recovery, social support, and poorer quality of life compared to patients with intact hedonic responses and an intermediary group.

    “Patients with schizophrenia and schizoaffective disorder who had high levels of social anhedonia had higher levels of symptomatology and lower levels of self-esteem, self-efficacy, subjective recovery, social support, and poorer quality of life compared to patients with intact hedonic responses and an intermediary group (49).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [49] Ritsner, 2018, The characterization of social anhedonia and its correlates in schizophrenia and schizoaffective patients, Psychiatry Res source

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    Premisecitation

    Patients with schizophrenia have intact in-the-moment (consummatory) positive emotions in response to events but display deficits in positively anticipating future events compared to healthy controls.

    “For example, in two studies (one using experience sampling methodology and the second employing cross-sectional questionnaires), Gard et al. (59) reported that patients with schizophrenia had intact in-the-moment (i.e., consummatory) positive emotions in response to events; however, they displayed deficits in positively anticipating future events when compared to healthy controls.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [59] Gard, 2007, Anhedonia in schizophrenia: distinctions between anticipatory and consummatory pleasure, Schizophr Res source

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  • May combine two claims.

    Interpretationreasoning

    A breakdown in the learning component of reward may underpin diminished expression of anticipatory positive emotions in relation to positive future events, and a deficit in anticipatory reward could impair social approach behaviors and lead to less engagement in social activities and ultimately diminish social functioning.

    “Collectively, perhaps, these studies point to a breakdown in the learning component of reward, which may underpin diminished expression of anticipatory positive emotions in relation to positive future events. In turn, a deficit in anticipatory reward could impair social approach behaviors and lead to less engagement in social activities and ultimately diminish social functioning.”
    Quote in the paperSubstantial claim
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    Premisecitation

    Anhedonia may be trait-like and predictive of both risk of onset and relapse for major depression.

    “Emerging literature suggests that anhedonia may be trait-like and predictive of both risk of onset and relapse for major depression (68).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [68] Hasler, 2004, Discovering endophenotypes for major depression, Neuropsychopharmacology source

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    Premisecitation

    Patients with schizophrenia who have social anhedonia are less able to modulate positive emotions, anticipate future pleasure, or use previous positive experiences to motivate future behaviors.

    “Patients with schizophrenia who have social anhedonia are less able to modulate positive emotions (63), anticipate future pleasure (59), or use previous positive experiences to motivate future behaviors (63).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [63] Gold, 2008, Reward processing in schizophrenia: a deficit in the representation of value, Schizophr Bull source

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    • cites [59] Gard, 2007, Anhedonia in schizophrenia: distinctions between anticipatory and consummatory pleasure, Schizophr Res source

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  • May combine two claims.

    Interpretationcitation

    In psychotic disorders, the enjoyment of social interactions is diminished but sensitivity to pain from inadequate social connections remains.

    “Again, however, anhedonia in psychotic disorders is associated with high levels of loneliness (64), suggesting that the enjoyment of social interactions is diminished in people with psychosis, but sensitivity to pain from (inadequate) social connections remains.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [64] Badcock, 2015, Loneliness in psychotic disorders and its association with cognitive function and symptom profile, Schizophr Res source

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  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    In depression, reduced motivation for reward is thought to be driven by deficits in the anticipation of rewards, while enjoyment of in-the-moment consummatory reward remains intact.

    “For instance, reduced motivation for reward is thought to be driven by deficits in the anticipation of rewards, while enjoyment of in-the-moment consummatory reward remains intact (74).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [74] Sherdell, 2012, Anticipatory pleasure predicts motivation for reward in major depression, J Abnorm Child Psychol source

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    Premisecitation

    As a continuous measure, social anhedonia is associated with depressive symptom severity and poor treatment response.

    “As a continuous measure, social anhedonia is associated with depressive symptom severity (70–72) and poor treatment response (68, 73).”
    Quote in the paperSubstantial claim0 of 5 sources checked
    • cites [70] Pelizza, 2009, Anhedonia in schizophrenia and major depression: state or trait, Ann Gen Psychiatry source

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    • cites [71] Rey, 2009, Schizotypy, depression, and anxiety in physical and social anhedonia, J Clin Psychology source

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    • cites [72] Atherton, 2015, Predicting symptoms of depression from social anhedonia and emotion regulation, J Nerv Ment Dis source

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    • cites [68] Hasler, 2004, Discovering endophenotypes for major depression, Neuropsychopharmacology source

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    • cites [73] Gorwood, 2008, Neurobiological mechanisms of anhedonia, Dialogues Clin Neurosci source

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  • May combine two claims.

    Interpretationcitation

    Focus on one's own internal states reduces engagement with the social environment, blunts in-the-moment emotional responses, and diminishes social skills.

    “Focus on one’s own internal states reduces engagement with the social environment, blunts in-the-moment emotional responses, and diminishes social skills.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Reduced emotional facial expression and less smiling are reported in depression and may exacerbate social anhedonia.

    “For instance, reduced emotional facial expression and less smiling (77) are reported in depression and may exacerbate social anhedonia (53, 78).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites [77] Girard, 2013, Social risk and depression: evidence from manual and automatic facial expression analysis

      Not checked in the free run.

    • cites [53] Leung, 2010, Is social anhedonia related to emotional responsivity and expressivity? A laboratory study in women, Schizophr Res source

      Not checked in the free run.

    • cites [78] Kadison, 2015, Subtypes of anhedonia and facial electromyography response to negative affective pictures in non-psychiatric adults, Cogn Neuropsychiatry source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Premisenone given

    Studies concerning social anhedonia in those with depression tend to capture behavioral correlates and not the cognitive underpinnings.

    “However, studies concerning social anhedonia in those with depression tend to capture behavioral correlates and not the cognitive underpinnings.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    In a working memory training program for those with psychometrically defined depression, ratings of depression decreased and hedonic experiences increased, but social anhedonia remained the same pre- and posttraining.

    “In a working memory training program for those with psychometrically defined depression, although ratings of depression decreased and hedonic experiences increased, social anhedonia remained the same pre- and posttraining (79).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [79] Zhang, 2019, Working memory training can improve anhedonia in college students with subsyndromal depressive symptoms source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based). May combine two claims.

    Interpretationreasoning

    The possibility that working memory training could improve anticipatory reward in those with anhedonia suggests that cognitive capacities could be a target to improve positive emotions toward social engagement and may in the longer term lead to changes in social behaviors.

    “However, the possibility that working memory training could improve anticipatory reward in those with anhedonia, in general, suggests that cognitive capacities could be a target to improve positive emotions toward social engagement and may in the longer term lead to changes in social behaviors.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Anhedonia in general is a focus of interest in eating disorders, though developing a single unifying framework is proving a challenge.

    “Anhedonia, in general, is also a focus of interest in eating disorders, though developing a single unifying framework is proving a challenge (87).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [87] Dunlop, 2016, Targeting neural endophenotypes of eating disorders with non-invasive brain stimulation, Front Neurosci source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Social and emotional difficulties in eating disorders include increased sensitivity to social rejection and alexithymia, along with poor social cognition and decreased sensitivity to social rewards.

    “These include increased sensitivity to social rejection and alexithymia, along with poor social cognition and decreased sensitivity to social rewards (93–95).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [93] Cardi, 2013, Social reward and rejection sensitivity in eating disorders: an investigation of attentional bias and early experiences, World J Biol Psychiatry source

      Not checked in the free run.

    • cites [94] Oldershaw, 2011, The socio-emotional processing stream in Anorexia Nervosa, Neurosci Biobehav Rev source

      Not checked in the free run.

    • cites [95] Treasure, 2013, The cognitive-interpersonal maintenance model of anorexia nervosa revisited: a summary of the evidence for cognitive, socio-emotional and interpersonal predisposing and perpetuating factors, J Eat Disord source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Some forms of eating disorders may be associated with normal levels of wanting but low levels of liking food, while bulimia nervosa may be associated with an excessive wanting of food that is not followed by a typical sense of pleasure.

    “Some forms of eating disorders may be associated with normal levels of wanting but low levels of liking food, while BN may be associated with an excessive wanting of food that is not followed by a typical sense of pleasure (82).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [82] Berridge, 2010, The tempted brain eats: pleasure and desire circuits in obesity and eating disorders, Brain Res source

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation

    While improvements can be gained in the anticipation of future events through cognitive remediation, it might be more difficult to change patterns of behavioral responses in general.

    “This study suggests, that while improvements can be gained in the anticipation of future events through cognitive remediation, it might be more difficult to change patterns of behavioral responses in general.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisereasoning

    Hedonic responses in eating disorders have consistently been separated into anticipatory and consummatory components.

    “However, given the focus on reward as a core concern in the nature of eating disorders, hedonic responses have consistently been separated into anticipatory and consummatory components.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    People with anorexia nervosa and bulimia nervosa have significantly higher scores on the Revised Social Anhedonia Scale than those without eating disorders, while those who had recovered from anorexia nervosa had intermediate levels of social anhedonia.

    “The results showed that people with AN and BN have significantly higher scores on the Revised Social Anhedonia Scale than those without eating disorders (96–98), while those who had recovered from AN had intermediate levels of social anhedonia.”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [96] Tchanturia, 2012, Altered social hedonic processing in eating disorders, Int J Eat Disord source

      Not checked in the free run.

    • cites [97] Harrison, 2014, Social anhedonia and work and social functioning in the acute and recovered phases of eating disorders, Psychiatry Res source

      Not checked in the free run.

    • cites [98] Deborde, 2006, [Relations between alexithymia and anhedonia: a study in eating disordered and control subjects], Encephale source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Women with anorexia nervosa avoid looking at the faces and eyes of others and find them less rewarding compared to non-eating disorder controls.

    “Evidence from behavioral studies suggests women with AN avoid looking at the faces and eyes of others and find them less rewarding compared to non-eating disorder controls (100), while at the neural level, areas of hypo- and hyperactivation have been identified in response to positive and negative social exchanges, respectively (101, 102).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [100] Watson, 2010, Altered social reward and attention in anorexia nervosa, Front Psychol source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Levels of social anhedonia do not differ between women with anorexia nervosa and bulimia nervosa, are highly correlated with illness chronicity, and significantly predict problems with social and occupational functioning.

    “Levels of social anhedonia do not differ between women with AN and BN (99), are highly correlated with illness chronicity, and significantly predict problems with social and occupational functioning (97).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [99] Eiber, 2002, Hedonic response to sucrose solutions and the fear of weight gain in patients with eating disorders, Psychiatry Res source

      Not checked in the free run.

    • cites [97] Harrison, 2014, Social anhedonia and work and social functioning in the acute and recovered phases of eating disorders, Psychiatry Res source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Elevated rates of both ASD traits and psychotic symptoms are present in patients with eating disorders.

    “Indeed, elevated rates of both ASD traits and psychotic symptoms are present in patients with eating disorders (105–107).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [105] Westwood, 2017, Clinical evaluation of autistic symptoms in women with anorexia nervosa, Mol Autism source

      Not checked in the free run.

    • cites [106] Westwood, 2017, Autism spectrum disorder in anorexia nervosa: an updated literature review, Curr Psychiatry Rep source

      Not checked in the free run.

    • cites [107] Alves Pereira, 2016, The co-occurrence of eating disorders and psychosis, Eur Psychiatry source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Overall, a tendency to both reduced consummatory and motivational reward was noted in PTSD, especially in females with PTSD and in response to positive social stimuli compared to nonsocial stimuli, suggestive of social anhedonia.

    “Overall, however, a tendency to both reduced consummatory and motivational reward was noted, especially in females with PTSD and in response to positive social stimuli compared to nonsocial stimuli, suggestive of social anhedonia (118).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [118] Nawijn, 2015, Reward functioning in PTSD: a systematic review exploring the mechanisms underlying anhedonia, Neurosci Biobehav Rev source

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation

    In contrast to ASD, impaired enjoyment of social interactions in eating disorders may be related to difficulties identifying and expressing feelings, as alexithymia scores were found to be strongly associated with social anhedonia in eating disorders.

    “For example, alexithymia scores were found to be strongly associated with social anhedonia in eating disorders; thus, in contrast to ASD (109), impaired enjoyment of social interactions in eating disorders may be related to difficulties identifying and expressing feelings (96).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [109] Foulkes, 2015, Common and distinct impacts of autistic traits and alexithymia on social reward, PLoS One source

      Not checked in the free run.

    • cites [96] Tchanturia, 2012, Altered social hedonic processing in eating disorders, Int J Eat Disord source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Greater anhedonia in PTSD has been linked to an increased risk of psychotic disorder and poor social functioning.

    “Greater anhedonia in PTSD has been linked to an increased risk of psychotic disorder (112, 113) and poor social functioning (114).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites [112] Kashdan, 2006, Anhedonia and emotional numbing in combat veterans with PTSD, Behav Res Ther source

      Not checked in the free run.

    • cites [113] Powers, 2016, Childhood trauma PTSD. and psychosis: findings from a highly traumatized, minority sample, Child Abuse Negl source

      Not checked in the free run.

    • cites [114] Cook, 2004, Posttraumatic stress disorder and current relationship functioning among World War II ex-prisoners of war, J Fam Psychol source

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation

    Reduced motivation to approach socially rewarding stimuli may be particularly evident in those with PTSD when greater effort is needed to gain reward, suggesting reduced sensitivity in the cognitive underpinning for 'wanting' social connections.

    “Reduced motivation to approach socially rewarding stimuli may be particularly evident in those with PTSD when greater effort is needed to gain reward (118), suggesting reduced sensitivity in the cognitive underpinning for “wanting” social connections.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [118] Nawijn, 2015, Reward functioning in PTSD: a systematic review exploring the mechanisms underlying anhedonia, Neurosci Biobehav Rev source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    ASD and schizophrenia spectrum disorders are neurodevelopmental disorders with overlapping features of social dysfunction, reflecting both shared and distinct component processes.

    “Autism spectrum disorders (ASD) and schizophrenia spectrum disorders are neurodevelopmental disorders with overlapping feat ures of social dysfunction (128), reflecting both shared and distinct component processes (129, 130).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [128] Ford, 2014, Factor analysis demonstrates a common schizoidal phenotype within autistic and schizotypal tendency: implications for neuroscientific studies, Front Psychiatry source

      Not checked in the free run.

    • cites [129] Morrison, 2017, Distinct profiles of social skill in adults with autism spectrum disorder and schizophrenia, Autism Res source

      Not checked in the free run.

    • cites [130] Russell-Smith, 2013, Unique sets of social and mood characteristics differentiate autistic and negative schizotypy traits in a young adult non-clinical sample, Pers Individ Dif source

      Not checked in the free run.

  • May combine two claims.

    Premisenone given

    Despite the well-recognized link between early childhood trauma and depression, schizotypy, and schizophrenia, the role of negative affective interference has received scant attention transdiagnostically and has not been considered in relation to social anhedonia specifically.

    “However, despite the well-recognized link between early childhood trauma and depression (125), schizotypy (126), and schizophrenia (127), the role of negative affective interference has received scant attention transdiagnostically and has not been considered in relation to social anhedonia specifically.”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [125] Li, 2015, Maltreatment in childhood substantially increases the risk of adult depression and anxiety in prospective cohort studies: systematic review, meta-analysis, and proportional attributable fractions, Psychol Med source

      Not checked in the free run.

    • cites [126] Velikonja, 2015, Childhood trauma and schizotypy: a systematic literature review, Psychol Med source

      Not checked in the free run.

    • cites [127] Mayo, 2017, The role of trauma and stressful life events among individuals at clinical high risk for psychosis: a review, Front Psychiatry source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Early clinical descriptions of autism noted a clear lack of interest in and pleasure from social stimuli, which are also associated with autistic traits in the general population, suggesting that social anhedonia may be a stable part of the broader autism phenotype.

    “Early clinical descriptions of autism (131) noted a clear lack of interest in and pleasure from social stimuli, which are also associated with autistic traits in the general population, suggesting that social anhedonia may be a stable part of the broader autism phenotype (132).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [131] Kanner, 1943, Autistic disturbances of affective contact, Nervous Child

      Not checked in the free run.

    • cites [132] Novacek, 2016, Hedonic capacity in the broader autism phenotype: should social anhedonia be considered a characteristic feature, Front Psychol source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Women with PTSD report less positive affect in response to positive interpersonal (social) memories, along with lowered neural activation in ventral striatal reward networks responsive to rewarding and socially salient stimuli.

    “For example, women with PTSD report less positive affect in response to positive interpersonal (social) memories, along with lowered neural activation in ventral striatal reward networks responsive to rewarding and socially salient stimuli (122).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [122] Felmingham, 2014, Reduced amygdala and ventral striatal activity to happy faces in PTSD is associated with emotional numbing, PLoS One source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Findings indicate a specific problem of social anhedonia in adolescents, with broader reductions in social and nonsocial pleasure in adults with ASD.

    “Of note, findings appear to indicate a specific problem of social anhedonia in adolescents (143), with broader reductions in social and nonsocial pleasure in adults with ASD (132, 143).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [143] Chevallier, 2012, Brief report: selective social anhedonia in high functioning autism, J Autism Dev Disord source

      Not checked in the free run.

    • cites [132] Novacek, 2016, Hedonic capacity in the broader autism phenotype: should social anhedonia be considered a characteristic feature, Front Psychol source

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation

    Social anhedonia might be present to some degree as a pediatric vulnerability marker for psychopathology, but it appears to be more core to the presentation of ASD.

    “This suggests that while social anhedonia might be present to some degree as a pediatric vulnerability marker for psychopathology, it appears to be more core to the presentation of ASD.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Scores on the Autism Spectrum Quotient and the Introvertive Anhedonia subscale of the O-LIFE are positively correlated, indicating a substantial association between autistic traits and social anhedonia in the general community.

    “For example, Rawlings and Locarnini (133) showed that scores on the Autism Spectrum Quotient (139) (measuring autistic traits) and the Introvertive Anhedonia subscale of the O-LIFE (140) were positively correlated, indicating a substantial association between autistic traits and social anhedonia in the general community.”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [133] Rawlings, 2008, Dimensional schizotypy, autism, and unusual word associations in artists and scientists, J Res Pers source

      Not checked in the free run.

    • cites [139] Woodbury-Smith, 2005, Screening adults for Asperger Syndrome using the AQ: a preliminary study of its diagnostic validity in clinical practice, J Autism Dev Disord source

      Not checked in the free run.

    • cites [140] Mason, 2006, The Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE): further description and extended norms, Schizophr Res source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Experimental studies support the idea that a primary deficit in social motivation in ASD, linked to neuronal and hormonal circuitry, leads to difficulties seeking, experiencing, and learning about rewards from social interactions, leading to subsequent abnormalities in the development of the neural pathways underpinning reward and social functioning impairments.

    “Alternatively, experimental studies support the idea that a primary deficit in social motivation in ASD (linked to neuronal and hormonal circuitry) leads to difficulties seeking, experiencing, and learning about rewards from social interactions (147–150), leading to subsequent abnormalities in the development of the neural pathways underpinning reward and social functioning impairments.”
    Quote in the paperNot a substantial claim0 of 4 sources checked
    • cites [147] Delmonte, 2012, Social and monetary reward processing in autism spectrum disorders, Mol Autism source

      Not checked in the free run.

    • cites [148] Chevallier, 2012, The social motivation theory of autism, Trends Cogn Sci source

      Not checked in the free run.

    • cites [149] Dubey, 2015, Measuring the value of social engagement in adults with and without autism, Mol Autism source

      Not checked in the free run.

    • cites [150] Kohls, 2012, Social ‘wanting’ dysfunction in autism: neurobiological underpinnings and treatment implications, J Neurodev Disord source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    In psychiatric referrals for young people aged 6 to 18 years, those with ASD had higher rates of social anhedonia, while across all young people referred, social anhedonia was related to higher social skill deficits, social anxiety, depression, and psychotic symptoms.

    “In comparing psychiatric referrals for young people aged between 6 and 18 years, Gadow and Garman (145) found that those with ASD had higher rates of social anhedonia, while across all young people referred to the service, social anhedonia was related to higher social skill deficits, social anxiety, depression, and psychotic symptoms.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [145] Gadow, 2018, Social anhedonia in children and adolescents with autism spectrum disorder and psychiatry referrals, J Clin Child Adolesc Psychol source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Adolescents with ASD reported significantly less enjoyment of social situations compared to typical controls, while pleasure from other sources did not differ.

    “For example, adolescents with ASD reported significantly less enjoyment of social situations (as measured with the Pleasure Scale) (144) compared to typical controls, while pleasure from other sources did not differ.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [144] Kazdin, 1989, Evaluation of the Pleasure Scale in the assessment of anhedonia in children, J Am Acad Child Adolesc Psychiatry source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    It is difficult to isolate social anhedonia specifically from other negative schizotypy traits or differentiate between the liking and wanting components of anhedonia in studies of autism.

    “In these studies, it is difficult to isolate social anhedonia specifically from other negative schizotypy traits (such as social anxiety) (130) or differentiate between the liking and wanting components of anhedonia.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [130] Russell-Smith, 2013, Unique sets of social and mood characteristics differentiate autistic and negative schizotypy traits in a young adult non-clinical sample, Pers Individ Dif source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Evidence linking dopamine and social anhedonia comes from genetic association studies in relatives of patients with schizophrenia and from dopamine D2 receptor binding availability along the psychosis continuum.

    “Evidence linking dopamine and social anhedonia can be drawn from genetic association studies in relatives of patients with schizophrenia (158) and dopamine D2 receptor binding availability along the psychosis continuum (159).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [158] Docherty, 2008, Anhedonia as a phenotype for the Val158Met COMT polymorphism in relatives of patients with schizophrenia, J Abnorm Psychol source

      Not checked in the free run.

    • cites [159] Eisenstein, 2017, Preliminary evidence that negative symptom severity relates to multilocus genetic profile for dopamine signaling capacity and D2 receptor binding in healthy controls and in schizophrenia, J Psychiatr Res source

      Not checked in the free run.

  • Classified as probably not a substantial claim. May combine two claims.

    Interpretationcitation

    Given that there are diverse neurological correlates underpinning the pleasure cycle, it may be that there are multiple biological pathways underpinning social anhedonia, which can account for its presentation in multiple disorders of distinct etiological mechanisms.

    “Given that there are diverse neurological correlates underpinning the pleasure cycle (152), it may be that there are multiple biological pathways underpinning social anhedonia, which can account for its presentation in multiple disorders of distinct etiological mechanisms.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [152] Berridge, 2009, Dissecting components of reward: ‘liking’, ‘wanting’, and learning, Curr Opin Pharmacol source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable), S4 (based). May combine two claims.

    Interpretationreasoning

    Understanding whether social anhedonia is underpinned by one mechanism that is consistent across all disorders or whether there are multiple pathways that can lead to the same outcome holds important treatment and etiological implications.

    “Understanding whether social anhedonia is underpinned by one mechanism that is consistent across all disorders or whether there are multiple pathways that can lead to the same outcome holds important treatment and etiological implications.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    The dopamine and opioid systems interact to underpin social bonding behaviors, with the nucleus accumbens providing an area of convergence for neural pathways.

    “However, the dopamine and opioid systems are also known to interact to underpin social bonding behaviors (166), with the nucleus accumbens providing an area of convergence for neural pathways (167).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [166] Resendez, 2016, Dopamine and opioid systems interact within the nucleus accumbens to maintain monogamous pair bonds, Elife source

      Not checked in the free run.

    • cites [167] Depue, 2005, A neurobehavioral model of affiliative bonding: implications for conceptualizing a human trait of affiliation, Behav Brain Sci source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    The DISC1-Q31L mutant mouse model is characterized by both abnormalities in nucleus accumbens structure and socially anhedonic-like behaviors.

    “The DISC1-Q31L mutant mouse model is characterized by both abnormalities in nucleus accumbens structure and socially anhedonic-like behaviors (168).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [168] Lipina, 2013, Disrupted-in-schizophrenia-1 Gln31Leu polymorphism results in social anhedonia associated with monoaminergic imbalance and reduction of CREB and beta-arrestin-1,2 in the nucleus accumbens in a mouse model of depression, Neuropsychopharmacology source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Evidence for the role of the opioid system in social anhedonia comes from genetic knockout and pharmacological models in mice and from a genetic association study in humans.

    “Evidence for the role of the opioid system in social anhedonia comes from genetic knockout and pharmacological models in mice (164) and a genetic association study in humans (165).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [164] Cinque, 2012, Modeling socially anhedonic syndromes: genetic and pharmacological manipulation of opioid neurotransmission in mice, Transl Psychiatry source

      Not checked in the free run.

    • cites [165] Troisi, 2011, Social hedonic capacity is associated with the A118G polymorphism of the mu-opioid receptor gene (OPRM1) in adult healthy volunteers and psychiatric patients, Soc Neurosci source

      Not checked in the free run.

    • Rests on an assumption: The opioid system mediates both approach and avoidance behaviors in humans and animals.
  • May combine two claims.

    Interpretationcitation

    The opioid system has a role in fear consolidation and may have specific relevance for the presence of social anhedonia in PTSD.

    “The opioid system has a role in fear consolidation and, therefore, may have specific relevance for the presence of social anhedonia in PTSD in particular (163).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [163] Bali, 2015, Stress and opioids: role of opioids in modulating stress-related behavior and effect of stress on morphine conditioned place preference, Neurosci Biobehav Rev source

      Not checked in the free run.

    • Rests on an assumption: The opioid system mediates both approach and avoidance behaviors in humans and animals.
  • May combine two claims.

    Premisecitation

    Individuals scoring highly on social anhedonia scales had lower levels of activity in the VLPFC and reported lower levels of positive affect during their daily lives.

    “In addition, Hooker et al. (171) found that those scoring highly on social anhedonia scales had lower levels of activity in the VLPFC and reported lower levels of positive affect during their daily lives.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [171] Hooker, 2014, Neural activity to positive expressions predicts daily experience of schizophrenia-spectrum symptoms in adults with high social anhedonia, J Abnorm Psychol source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Abnormal connectivity has been reported in adolescents, in those with depression, and in healthy volunteers who score highly on self-report measures of social anhedonia or anticipatory/consummatory anhedonia.

    “Abnormal connectivity has been reported in adolescents (173), in those with depression (174), and in healthy volunteers (8, 175, 176) who score highly on self-report measures of social anhedonia or anticipatory/consummatory anhedonia.”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [173] Healey, 2014, Social anhedonia and medial prefrontal response to mutual liking in late adolescents, Brain Cogn source

      Not checked in the free run.

    • cites [174] Yang, 2017, White matter microstructural abnormalities and their association with anticipatory anhedonia in depression, Psychiatry Res source

      Not checked in the free run.

    • cites [8] Dodell-Feder, 2014, The neural basis of theory of mind and its relationship to social functioning and social anhedonia in individuals with schizophrenia, Neuroimage Clin source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Wang et al. reported inverse correlations between social anhedonia and cortical thickness in the post central gyrus and left inferior parietal gyrus after controlling for physical anhedonia, but no correlations with cortical thickness for areas involved in the reward network.

    “Contrastingly, Wang et al. (177) reported inverse correlations between social anhedonia and cortical thickness in the post central gyrus and left inferior parietal gyrus (after controlling for physical anhedonia) but no correlations with cortical thickness for areas involved in the reward network.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [177] Wang, 2014, Distinct structural neural patterns of trait physical and social anhedonia: evidence from cortical thickness, subcortical volumes and inter-regional correlations, Psychiatry Res source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    In both healthy volunteers and patients with depression, higher levels of social anhedonia were related to reduced gray matter volume in the bilateral caudate nucleus; these results remained controlling for other symptoms and medication status in participants diagnosed with depression.

    “On the other hand, Enneking et al. report that in both healthy volunteers and patients with depression, higher levels of social anhedonia were related to reduced gray matter volume in the bilateral caudate nucleus (178); these results remained controlling for other symptoms and medication status in the participants diagnosed with depression.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [178] Enneking, 2018, Social anhedonia in major depressive disorder: a symptom-specific neuroimaging approach, Neuropsychopharmacology source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    Genetic, neurobiological, and imaging studies collectively point to the importance of emotional regulation, reward circuitry, and social anhedonia.

    “Genetic, neurobiological, and imaging studies collectively point to the importance of emotional regulation, reward circuitry, and social anhedonia.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Acceptance and social inclusion by peers are particularly salient in early adolescents, while emerging adults may be more sensitive to intimacy cues from potential romantic partners.

    “Acceptance and social inclusion by peers, for example, assume particular salience in early adolescents, while emerging adults may be more sensitive to intimacy cues, such as those from potential romantic partners (185).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [185] Meier, 2009, Romantic relationships from adolescence to young adulthood: evidence from the National Longitudinal Study of Adolescent Health, Sociol Q source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    Like in adults, the ventral striatum is important in determining response to rewards, with social context, life experience, and expression of anhedonia mediating or moderating responsiveness.

    “These studies suggest that, like in adults, the ventral striatum is important in determining response to rewards, with social context, life experience, and expression of anhedonia mediating or moderating responsiveness.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Diminished ventral striatum activity in response to anticipation of monetary reward is associated with anhedonia in adolescents, and ventral striatum activity in response to reward may be moderated by exposure to early life stress.

    “Diminished activity in the ventral striatum in response to anticipation of monetary reward has been associated with anhedonia in adolescents, and ventral striatum activity in response to reward may be moderated by exposure to early life stress (192).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [192] Corral-Frias, 2015, Stress-related anhedonia is associated with ventral striatum reactivity to reward and transdiagnostic psychiatric symptomatology, Psychol Med source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Cortical mechanisms involved in processing social and nonsocial rewards follow differential trajectories with age and gender, which can give rise to an imbalance between heightened motivation and diminished cognitive control during adolescence.

    “At the neural level, the cortical mechanisms involved in the processing of social and nonsocial rewards follow differential trajectories with age and gender, which can give rise to an imbalance between (heightened) motivation and (diminished) cognitive control during adolescence (191).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [191] Casey, 2011, Braking and accelerating of the adolescent brain, J Res Adolesc source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    The Anticipatory and Consummatory Interpersonal Pleasure Scale for Adolescents (ACIPS-A) measures the discrete wanting and liking component of reward and may help classify adolescents in the general community who are or are not at risk and may benefit from early intervention.

    “For example, the Anticipatory and Consummatory Interpersonal Pleasure Scale for Adolescents (ACIPS-A) (19) measures the discrete wanting and liking component of reward and may help classify adolescents in the general community who are/are not at risk (e.g., of psychosis) (195) and may benefit from early intervention.”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [19] Gooding, 2016, Assessing social anhedonia in adolescence: the ACIPS-A in a community sample, Eur. Psychiatry source

      Not checked in the free run.

    • cites [195] Fonseca-Pedrero, 2016, Classifying risk status of non-clinical adolescents using psychometric indicators for psychosis spectrum disorders, Psychiatry Res source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    Across all studies, patient groups regardless of diagnosis report higher levels of social anhedonia compared to healthy controls, although psychosis continuum work highlights wide variation in social anhedonia scores in healthy volunteer samples.

    “Across all studies, patient groups, regardless of diagnosis, report higher levels of social anhedonia compared to healthy controls, although it needs to be noted that the psychosis continuum work highlights wide variation in social anhedonia scores in healthy volunteer samples.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationcitation

    Social anhedonia presents across multiple psychological disorders and is detectable to variable degree in the general healthy population.

    “Social anhedonia presents across multiple psychological disorders and is detectable to variable degree in the general healthy population (14).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [14] Miettunen, 2012, Predicting depression with psychopathology and temperament traits: the northern Finland 1966 birth cohort, Depress Res Treat source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    The psychosis continuum seems to be characterized by deficits in anticipatory but not consummatory systems, although not consistently, while PTSD, depression, and ASD reflect difficulties in both, and the picture for eating disorders appears complex with inconsistent findings reflecting symptom and etiological heterogeneity.

    “Broadly speaking, the psychosis continuum seems to be characterized by deficits in anticipatory but not consummatory systems (although not consistently) (59), while PTSD (121), depression (74), and ASD reflect difficulties in both and the picture for eating disorders appears to be complex with inconsistent findings reflecting symptom and etiological heterogeneity.”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [59] Gard, 2007, Anhedonia in schizophrenia: distinctions between anticipatory and consummatory pleasure, Schizophr Res source

      Not checked in the free run.

    • cites [121] Lieberman, 2017, Impact of posttraumatic stress symptom dimensions on psychophysiological reactivity to threat and reward, J Psychiatr Res source

      Not checked in the free run.

    • cites [74] Sherdell, 2012, Anticipatory pleasure predicts motivation for reward in major depression, J Abnorm Child Psychol source

      Not checked in the free run.

  • May combine two claims.

    Interpretationnone given

    In some disorders such as eating disorders, anhedonia is generalized across both social and nonsocial domains, while in others such as PTSD, anhedonia may be relatively specific to social environments and interactions.

    “In some disorders (i.e., eating disorders), anhedonia is present but generalized across both social and nonsocial domains, while for others, such as PTSD, anhedonia may be relatively specific to social environments and interactions.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationnone given

    Social anhedonia may present as a trait temperament characteristic in some individuals, while for others it may be linked to the co-occurrence of depressive symptomatology.

    “Social anhedonia, specifically, may present as a trait temperament characteristic in some individuals, while for others, it may be linked to the co-occurrence of depressive symptomatology.”
    Quote in the paperSubstantial claim
  • Classified as probably not a substantial claim. May combine two claims.

    Premisecitation

    Recent psychometric work revealed that negative affect and social anhedonia load on separate dimensions of the broader schizotypy construct, while other works suggest that social anhedonia loads onto both positive and negative features of schizotypy.

    “Support for this proposal comes from recent psychometric work, which revealed that negative affect and social anhedonia load on separate dimensions of the broader schizotypy construct (203), while other works suggest that social anhedonia loads onto both positive and negative features of schizotypy (204, 205).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [203] Christensen, 2018, Exploratory graph analysis of the multidimensional schizotypy scale source

      Not checked in the free run.

    • cites [204] Cihan, 2015, Exploring the role of social anhedonia in the positive and negative dimensions of schizotypy in a non-clinical sample, Noropsikiyatri Ars source

      Not checked in the free run.

    • cites [205] Smith, 2016, Further examination of the factor structure of the Chapman Psychosis Proneness Scales (CPPS), Psychiatry Res source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Low pleasure beliefs are documented in relation to social anhedonia and appear to play a role in predicting the likelihood that future pleasurable events will occur.

    “In addition, low pleasure beliefs are documented in relation to social anhedonia (199), and these low pleasure beliefs appear to play a role in predicting the likelihood that future pleasurable events will occur (200).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [199] Yang, 2018, Low-pleasure beliefs in patients with schizophrenia and individuals with social anhedonia, Schizophr Res source

      Not checked in the free run.

    • cites [200] Hu, 2018, Mediation effect of beliefs about pleasure and emotional experience between social anhedonia and prediction of pleasant events, Psychiatry Res source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S4 (based).

    Premisenone given

    Studies on social anhedonia are largely correlational or observational in nature, regardless of whether they consider clinical or nonclinical samples.

    “These are largely correlational or observational in nature, regardless of whether they are considering clinical or nonclinical samples.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    An emerging body of work demonstrates detrimental effects of loneliness and social disconnection on physical and mental health.

    “It is becoming particularly important to understand this given the emerging body of work demonstrating the detrimental effects of loneliness and social disconnection on physical and mental health (3, 64, 206).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites [3] Cacioppo, 2015, Loneliness: clinical import and interventions, Perspect Psychol Sci source

      Not checked in the free run.

    • cites [64] Badcock, 2015, Loneliness in psychotic disorders and its association with cognitive function and symptom profile, Schizophr Res source

      Not checked in the free run.

    • cites [206] Cacioppo, 2014, The neuroendocrinology of social isolation, Annu Rev Psychol source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    There are cognitive biases related to social anhedonia, which could influence the likelihood of similarly biased responding on social report scales.

    “These studies point to there being cognitive biases related to social anhedonia, which could influence the likelihood of similarly biased responding on social report scales.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Social anhedonia needs consideration as a distinct form of anhedonia with separable neural substrates.

    “Furthermore, social anhedonia needs consideration as a distinct form of anhedonia—with separable neural substrates (201).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [201] Langvik, 2019, Psychometric properties of the Snaith-Hamilton Pleasure Scale and a facet-level analysis of the relationship between anhedonia and extraversion in a nonclinical sample, Psychol Rep source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Studies point to those with social anhedonia seeking out personal relationships, albeit with reduced positive experiences; therefore, those with social anhedonia have some motivation for belongingness and are aware when belongingness needs are unmet (i.e., they feel lonely).

    “However, studies point to those with social anhedonia seeking out personal relationships, albeit with reduced positive experiences (31); therefore, those with social anhedonia have some motivation for belongingness and are aware when belongingness needs are unmet (i.e., they feel lonely).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [31] Assaad, 2016, J Pers source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    There is increasing evidence for subjective deficits in self (emotion) regulation in social anhedonia, while objective performance remains intact; these subjective deficits would be sufficient to bias the processing of social information.

    “There is increasing evidence for subjective deficits in self (emotion) regulation in social anhedonia, while objective performance remains intact (198); these subjective deficits, however, would be sufficient to bias the processing of social information.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [198] Li, 2019, The subjective-objective deficit paradox in schizotypy extends to emotion regulation and awareness, J Psychiatr Res source

      Not checked in the free run.

  • Classified as probably not a substantial claim. May combine two claims.

    Premisenone given

    Negative schizotypy is a broader construct than merely social anhedonia and also encapsulates social anxiety, flattened affect, and anhedonia in general.

    “Negative schizotypy is a broader construct than merely social anhedonia and also encapsulates social anxiety, flattened affect, and anhedonia in general.”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Interpretationreasoning

    Individuals with social anhedonia may require larger perceived gains before they engage in social approach behaviors.

    “Individuals with social anhedonia may require larger perceived gains before they engage in social approach behaviors.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Premisenone given

    Those with social anhedonia do engage in significant social relationships.

    “the number of studies that demonstrated those with social anhedonia do engage in significant social relationships”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationcitation

    The socialization of reward processes may represent a point of psychological vulnerability, particularly how children learn to express and receive reward from social interactions.

    “The socialization of reward processes may represent a point of psychological vulnerability (209), particularly how children learn to express and receive reward from social interactions.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [209] Walker, 2017, Adolescence and reward: making sense of neural and behavioral changes amid the chaos, J Neurosci source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S4 (based).

    Interpretationnone given

    Neurobiological and neural correlates implicated in emotional regulation and reward provide likely key biological pathways for social anhedonia.

    “The neurobiological and neural correlates implicated in emotional regulation and reward provide likely key biological pathways for social anhedonia.”
    Quote in the paperNot a substantial claim
100 of 100
  • The paper relies on this without support.

    Adolescence is a particularly important period of social and neural development and may provide a valuable window on the developmental origins of social anhedonia.

    “Adolescence is a particularly important period of social and neural development and may provide a valuable window on the developmental origins of social anhedonia.”
  • The paper relies on this without support.

    Adaptive social functioning is key to recovery from mental health disorders.

    “Adaptive social functioning is key to recovery from mental health disorders; therefore, understanding the intricacies of social anhedonia will help to inform treatment and prevention strategies for a range of diagnostic categories.”
  • The paper relies on this without support.

    Anhedonia is a core component of depressive disorders.

    “Anhedonia is a core component of depressive disorders. However, there is limited research on social anhedonia specifically.”
  • The paper relies on this without support.

    The opioid system mediates both approach and avoidance behaviors in humans and animals.

    “The opioid system mediates both approach and avoidance behaviors in humans and animals.”
4 of 4

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Depression is described as having both intact and impaired consummatory reward

    Major

    The depression section says in-the-moment consummatory enjoyment remains intact, but the general discussion says depression involves difficulties in both anticipatory and consummatory reward.

1 of 1

The citation lists haven’t been fetched yet

References 211 · Cited by 165

Research works printed but not linked: 2

  1. Assaad, 2016, J Pers, 86, 10.1111/jopy.12300| · DOI
  2. 2013, Diagnostic and statistical manual of mental disorders: DSM 5

Authors
Barkus, E., & Badcock, J. C.
Affiliations
  • University of Wollongong (AU)
  • The University of Western Australia (AU)
Corresponding author
Barkus, Emma
Venue
Frontiers in Psychiatry
Published
2019-04-24
Volume
10
Pages
216-216
ISSN
1664-0640 (ISSN-L)
OpenAlex
W2940551659
Cited by
165
References
211
Citations by year
2026: 17 · 2025: 33 · 2024: 26 · 2023: 26 · 2022: 26 · 2021: 19 · 2020: 16 · 2019: 2
FWCI
2.65
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Psychiatry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • UWA Profiles and Research Repository (UWA) (publishedVersion, other-oa)
  • PubMed (publishedVersion)
  • Northumbria Research Link (Northumbria University) (acceptedVersion)
  • Research Online (University of Wollongong) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
social anhedonia, transdiagnostic mechanisms, social reward, schizotypy, schizophrenia, psychosis continuum, depressive disorders, post-traumatic stress disorder, eating disorders, autism spectrum disorder, loneliness, social withdrawal, social functioning, adolescence

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