Investigating emotional impairments in adults with autism spectrum disorders and the broader autism phenotype
Abstract
There is an increasing interest in the socio-affective atypicalities observed in adults with autism spectrum disorder (ASD). The aim of this study was to further explore emotional responsiveness in adults with ASD using well-validated self-reports of alexithymia and to determine whether anhedonic features are part of a broader autism phenotype (BAP). Participants comprised 38 adults with ASD, 87 parents of ASD individuals and 47 typical controls. All participants completed the Autism Spectrum Quotient (AQ), the 20-item Toronto Alexithymia Scale, and the Bermond-Vorst Alexithymia Questionnaire, as well as the Chapman Physical and Social Anhedonia Scales. The ASD group differed from controls and parents on most measures, with the exception of physical and social anhedonia, relative to parents. Parents differed from controls on social anhedonia, and a higher proportion of parents were classed as alexithymic, relative to controls. Cluster analysis revealed that some parents share more similarities with ASD participants than with controls. The results suggest that socio-affective impairments characteristic of ASD are part of the BAP.
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Individuals with ASD have high levels of alexithymia, with a prevalence of 40-65% reported in adults with ASD.
“Recent research suggests that individuals with ASD also have high levels of alexithymia, with a prevalence of 40–65% reported in adults with ASD [27–29].”
Adults with ASD have significantly higher scores on the Social Anhedonia Scale compared to their peers, even when dysphoric affect was controlled.
“Similarly, adults with ASD were found to have significantly higher scores on the Social Anhedonia Scale (141) compared to their peers, even when dysphoric affect was controlled (142).”
From A transdiagnostic perspective on social anhedonia (2019) · cites this paper as [142]
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Cites
An inventory for measuring depression
BECK, A. T. (1961) · Archives of General Psychiatry · doi:10.1001/archpsyc.1961.01710120031004 · Cited by 38,032 · see citing works
Psychometric properties of the Beck Depression Inventory: Twenty-five years of evaluation
Beck, A. T., Steer, R. A., & Carbin, M. G. (1988) · Clinical Psychology Review · doi:10.1016/0272-7358(88)90050-5 · Cited by 11,696 · see citing works
(1943) · The Nervous child · Cited by 8,870 · see citing works
Baron-Cohen, S., Wheelwright, S., Skinner, R., Martin, J., & Clubley, E. (2001) · Journal of Autism and Developmental Disorders · doi:10.1023/a:1005653411471 · Cited by 6,450 · cited 7× · see citing works
“The total sample recruited was substantial and the ASD group was representative of the larger ASD population in terms of both sex ratio and AQ scores (e.g., Baron-Cohen et al., 2001; Baird, et al., 2006; Wheelwright et al., 2010).”
InfluentialThe Endophenotype Concept in Psychiatry: Etymology and Strategic Intentions
Gottesman, I. I., & Gould, T. D. (2003) · American Journal of Psychiatry · doi:10.1176/appi.ajp.160.4.636 · Cited by 5,615 · see citing works
Bagby, R. M., Parker, J. D. A., & Taylor, G. J. (1994) · Journal of Psychosomatic Research · doi:10.1016/0022-3999(94)90005-1 · Cited by 5,293 · see citing works
Model-Based Clustering, Discriminant Analysis, and Density Estimation
Fraley, C., & Raftery, A. E. (2002) · Journal of the American Statistical Association · doi:10.1198/016214502760047131 · Cited by 4,274 · see citing works
Baron-Cohen, S., & Wheelwright, S. (2004) · Journal of Autism and Developmental Disorders · doi:10.1023/b:jadd.0000022607.19833.00 · Cited by 4,093 · see citing works
The twenty-item Toronto Alexithymia scale—II. Convergent, discriminant, and concurrent validity
Bagby, R. M., Taylor, G. J., & Parker, J. D. A. (1994) · Journal of Psychosomatic Research · doi:10.1016/0022-3999(94)90006-x · Cited by 2,431 · see citing works
Mayer, T. F., Lazarsfeld, P. F., & Henry, N. W. (1969) · American Sociological Review · doi:10.2307/2092222 · Cited by 2,412 · see citing works
Baird, G., Simonoff, E., Pickles, A., Chandler, S., Loucas, T., Meldrum, D., & Charman, T. (2006) · The Lancet · doi:10.1016/s0140-6736(06)69041-7 · Cited by 2,104 · see citing works
The social motivation theory of autism
Chevallier, C., Kohls, G., Troiani, V., Brodkin, E. S., & Schultz, R. T. (2012) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2012.02.007 · Cited by 2,072 · see citing works
Berridge, K. C., & Robinson, T. E. (2003) · Trends in Neurosciences · doi:10.1016/s0166-2236(03)00233-9 · Cited by 1,869 · see citing works
Scales for physical and social anhedonia.
Chapman, L. J., Chapman, J. P., & Raulin, M. L. (1976) · Journal of Abnormal Psychology · doi:10.1037//0021-843x.85.4.374 · Cited by 1,557 · see citing works
Scales for physical and social anhedonia.
Chapman, L. J., Chapman, J. P., & Raulin, M. L. (1976) · Journal of Abnormal Psychology · doi:10.1037/0021-843x.85.4.374 · Cited by 1,234 · see citing works
Schultz, R. T. (2005) · International Journal of Developmental Neuroscience · doi:10.1016/j.ijdevneu.2004.12.012 · Cited by 1,071 · see citing works
Baranek, G. T., David, F. J., Poe, M. D., Stone, W. L., & Watson, L. R. (2006) · Journal of Child Psychology and Psychiatry · doi:10.1111/j.1469-7610.2005.01546.x · Cited by 975 · cited 2× · see citing works
“Hedonic abnormalities from sensitive arousal have also been noted (e.g., Baranek et al., 2006; Baron-Cohen et al., 2009).”
Bernhardt, B. C., & Singer, T. (2012) · Annual Review of Neuroscience · doi:10.1146/annurev-neuro-062111-150536 · Cited by 952 · see citing works
Henry, N. W. (2014) · Wiley StatsRef: Statistics Reference Online · doi:10.1002/9781118445112.stat02466 · Cited by 746 · see citing works
Talent in autism: hyper-systemizing, hyper-attention to detail and sensory hypersensitivity
Baron-Cohen, S., Ashwin, E., Ashwin, C., Tavassoli, T., & Chakrabarti, B. (2009) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2008.0337 · Cited by 669 · see citing works
Empathic brain responses in insula are modulated by levels of alexithymia but not autism
Bird, G., Silani, G., Brindley, R., White, S., Frith, U., & Singer, T. (2010) · Brain · doi:10.1093/brain/awq060 · Cited by 655 · see citing works
Hill, E., Berthoz, S., & Frith, U. (2004) · Journal of Autism and Developmental Disorders · doi:10.1023/b:jadd.0000022613.41399.14 · Cited by 619 · see citing works
Self-citationValidity and reliability of the Bermond-Vorst Alexithymia Questionnaire
Vorst, H. C. M., & Bermond, B. (2001) · Personality and Individual Differences · doi:10.1016/s0191-8869(00)00033-7 · Cited by 608 · see citing works
Rogers, S. J., & Ozonoff, S. (2005) · Journal of Child Psychology and Psychiatry · doi:10.1111/j.1469-7610.2005.01431.x · Cited by 597 · see citing works
Erratum to: “Parsing reward” [Trends Neurosci. 26 (2003) 507–513]
Berridge, K. C., & Robinson, T. E. (2003) · Trends in Neurosciences · doi:10.1016/j.tins.2003.09.001 · Cited by 559 · see citing works
Geschwind, D. H. (2009) · Annual Review of Medicine · doi:10.1146/annurev.med.60.053107.121225 · Cited by 512 · see citing works
Levels of emotional awareness and autism: an fMRI study
Silani, G., Bird, G., Brindley, R., Singer, T., Frith, C., & Frith, U. (2008) · Social Neuroscience · doi:10.1080/17470910701577020 · Cited by 485 · see citing works
Self-Referential Cognition and Empathy in Autism
Lombardo, M. V., Barnes, J. L., Wheelwright, S. J., & Baron‐Cohen, S. (2007) · PLoS ONE · doi:10.1371/journal.pone.0000883 · Cited by 439 · see citing works
Berthoz, S., & Hill, E. L. (2005) · European Psychiatry · doi:10.1016/j.eurpsy.2004.06.013 · Cited by 400 · see citing works
Self-citationWho Cares? Revisiting Empathy in Asperger Syndrome
Rogers, K., Dziobek, I., Hassenstab, J., Wolf, O. T., & Convit, A. (2007) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-006-0197-8 · Cited by 381 · see citing works
Mason, O. J., & CLARIDGE, G. S. (2006) · Schizophrenia Research · doi:10.1016/j.schres.2005.12.845 · Cited by 379 · see citing works
MCLUST Version 3 for R: Normal Mixture Modeling and Model-Based Clustering †
Fraley, C., & Raftery, A. E. (2007) · Cited by 379 · see citing works
Emotion regulation in Asperger’s syndrome and high-functioning autism
Samson, A. C., Huber, O., & Gross, J. J. (2012) · Emotion · doi:10.1037/a0027975 · Cited by 368 · cited 1× · see citing works
“…have difficulties in processing their own emotions including poor emotional introspection, clarity, expression and regulation (e.g., Hill et al., 2004; Berthoz and Hill, 2005; Konstantareas and Stewart, 2006; Szatmari et al., 2008; Petrides et al., 2011; Rieffe et al., 2011; Samson et al., 2012).”
Sucksmith, E., Roth, I., & Hoekstra, R. A. (2011) · Neuropsychology Review · doi:10.1007/s11065-011-9183-9 · Cited by 336 · see citing works
Wheelwright, S., Auyeung, B., Allison, C., & Baron-Cohen, S. (2010) · Molecular Autism · doi:10.1186/2040-2392-1-10 · Cited by 308 · see citing works
Affect regulation and temperament in children with autism spectrum disorder
Konstantareas, M. M., & Stewart, K. (2006) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-005-0051-4 · Cited by 307 · see citing works
Horan, W. P., Kring, A. M., Gur, R. E., Reise, S. P., & Blanchard, J. J. (2011) · Schizophrenia Research · doi:10.1016/j.schres.2011.06.030 · Cited by 305 · see citing works
Calder, L., Hill, V., & Pellicano, E. (2012) · Autism · doi:10.1177/1362361312467866 · Cited by 270 · see citing works
Baron-Cohen, S., & Wheelwright, S. (2003) · Journal of Autism and Developmental Disorders · doi:10.1023/a:1025879411971 · Cited by 251 · see citing works
Executive processes in Asperger syndrome: Patterns of performance in a multiple case series
Hill, E. L., & Bird, C. M. (2006) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2006.06.007 · Cited by 228 · see citing works
Self-citationAutistic traits are associated with diminished neural response to affective touch
Voos, A. C., Pelphrey, K. A., & Kaiser, M. D. (2013) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nss009 · Cited by 205 · see citing works
Pao, M., & Kazak, A. E. (2014) · Oxford University Press eBooks · doi:10.1093/med/9780199335114.003.0012 · Cited by 198 · see citing works
Social “wanting” dysfunction in autism: neurobiological underpinnings and treatment implications
Kohls, G., Chevallier, C., Troiani, V., & Schultz, R. T. (2012) · Journal of Neurodevelopmental Disorders · doi:10.1186/1866-1955-4-10 · Cited by 197 · see citing works
The role of alexithymia in reduced eye-fixation in autism spectrum conditions
Bird, G., Press, C., & Richardson, D. C. (2011) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-011-1183-3 · Cited by 189 · see citing works
Hurtig, T. M., Kuusikko, S., Mattila, M., Haapsamo, H., Ebeling, H. E., Jussila, K. K., Joskitt, L., Pauls, D. L., & Moilanen, I. K. (2009) · Autism · doi:10.1177/1362361309335719 · Cited by 176 · see citing works
Emotion regulation and internalizing symptoms in children with autism spectrum disorders
Rieffe, C., Oosterveld, P., Terwogt, M. M., Mootz, S., van Leeuwen, E., & Stockmann, L. (2011) · Autism · doi:10.1177/1362361310366571 · Cited by 164 · see citing works
Brief Report: Selective Social Anhedonia in High Functioning Autism
Chevallier, C., Grèzes, J., Molesworth, C., Berthoz, S., & Happé, F. (2012) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-011-1364-0 · Cited by 161 · see citing works
Self-citationCascio, C. J., Moana‐Filho, E. J., Guest, S., Nebel, M. B., Weisner, J., Baranek, G. T., & Essick, G. K. (2012) · Autism Research · doi:10.1002/aur.1224 · Cited by 154 · see citing works
Pavlovian Reward Prediction and Receipt in Schizophrenia: Relationship to Anhedonia
Dowd, E. C., & Barch, D. M. (2012) · PLoS ONE · doi:10.1371/journal.pone.0035622 · Cited by 154 · see citing works
Minshew, N. J., & Hobson, J. A. (2008) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-007-0528-4 · Cited by 154 · see citing works
Gerdts, J., & Bernier, R. (2011) · Autism Research and Treatment · doi:10.1155/2011/545901 · Cited by 146 · cited 2× · see citing works
“In this domain of research, the so-called Broader Autism Phenotype (BAP), mild social and communication impairments have been suggested to be likely ‘the most familial of autism-related traits’ (Gerdts and Bernier, 2011, p.14).”
Cederlund, M., Hagberg, B., & Gillberg, C. (2010) · Research in Developmental Disabilities · doi:10.1016/j.ridd.2009.09.006 · Cited by 145 · see citing works
An exploration of sensory and movement differences from the perspective of individuals with autism
Robledo, J., Donnellan, A. M., & Strandt-Conroy, K. (2012) · Frontiers in Integrative Neuroscience · doi:10.3389/fnint.2012.00107 · Cited by 135 · see citing works
A cognitive and an affective dimension of alexithymia in six languages and seven populations
Bermond, B., Clayton, K., Liberova, A., Luminet, O., Maruszewski, T., Ricci Bitti, P. E., Rimé, B., Vorst, H. H., Wagner, H., & Wicherts, J. (2007) · Cognition and Emotion · doi:10.1080/02699930601056989 · Cited by 131 · see citing works
Distinct Face-Processing Strategies in Parents of Autistic Children
Adolphs, R., Spezio, M., Parlier, M., & Piven, J. (2008) · Current Biology · doi:10.1016/j.cub.2008.06.073 · Cited by 129 · see citing works
Heaton, P., Reichenbacher, L., Sauter, D., Allen, R., Scott, S., & Hill, E. (2012) · Psychological Medicine · doi:10.1017/s0033291712000621 · Cited by 119 · see citing works
Self-citationStuhrmann, A., Dohm, K., Kugel, H., Zwanzger, P., Redlich, R., Grotegerd, D., Rauch, A. V., Arolt, V., Heindel, W., Suslow, T., et al. (2013) · Journal of Psychiatry and Neuroscience · doi:10.1503/jpn.120060 · Cited by 112 · see citing works
Impaired recognition of facial emotions from low-spatial frequencies in Asperger syndrome
Kätsyri, J., Saalasti, S., Tiippana, K. M., von Wendt, L., & Sams, M. E. (2008) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2008.01.005 · Cited by 102 · see citing works
Alexithymia in Parents of Children with Autism Spectrum Disorder
Szatmári, P., Georgiades, S., Duku, E., Zwaigenbaum, L., Goldberg, J., & Bennett, T. (2008) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-008-0576-4 · Cited by 101 · see citing works
Poljac, E., Poljac, E., & Wagemans, J. P. (2012) · Autism · doi:10.1177/1362361312455703 · Cited by 99 · see citing works
Anxiety and Depression in Children with HFASDs: Symptom Levels and Source Differences
Lopata, C. J., Toomey, J. A., Fox, J. D., Volker, M. A., Chow, S. Y., Thomeer, M. L., Lee, G. K., Rodgers, J. D., McDonald, C. A., & Smerbeck, A. M. (2010) · Research on Child and Adolescent Psychopathology · doi:10.1007/s10802-010-9406-1 · Cited by 95 · see citing works
Dimensional schizotypy, autism, and unusual word associations in artists and scientists
Rawlings, D., & Locarnini, A. (2007) · Journal of Research in Personality · doi:10.1016/j.jrp.2007.06.005 · Cited by 94 · see citing works
Freeth, M., Bullock, T., & Milne, E. (2012) · Autism · doi:10.1177/1362361312445511 · Cited by 91 · see citing works
Harvey, P., Armony, J. L., MALLA, A. K., & Lepage, M. (2010) · Journal of Psychiatric Research · doi:10.1016/j.jpsychires.2009.12.008 · Cited by 85 · see citing works
Berthoz, S., Perdereau, F., Godart, N. T., Corcos, M., & Haviland, M. G. (2007) · Journal of Psychosomatic Research · doi:10.1016/j.jpsychores.2006.10.008 · Cited by 80 · see citing works
Self-citationMazefsky, C. A., Conner, C. M., & Oswald, D. P. (2010) · Autism Research · doi:10.1002/aur.133 · Cited by 70 · see citing works
Patterns of Autobiographical Memory in Adults with Autism Spectrum Disorder
Crane, L., Pring, L., Jukes, K., & Goddard, L. (2012) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-012-1459-2 · Cited by 60 · see citing works
Self-citationPetrides, K., Hudry, K., Michalaria, G., Swami, V., & Sevdalis, N. (2011) · Autism · doi:10.1177/1362361310397217 · Cited by 49 · see citing works
Assouly-Besse, F., Dollfus, S., & Petit, M. (1995) · PubMed · Cited by 41 · see citing works
Bermond, B. (1996) · UvA-DARE (University of Amsterdam) · Cited by 40 · see citing works
Alexithymia from the Social Neuroscience Perspective
Berthoz, S., Pouga, L., & Wessa, M. (2011) · Oxford University Press eBooks · doi:10.1093/oxfordhb/9780195342161.013.0060 · Cited by 30 · see citing works
Self-citationBurger (1998) · doi:10.1002/(sici)1098-2779(1998)4:2
Flagged first, then by citations
Cited by
Sorted by citations
Hollocks, M. J., Lerh, J. W., Magiati, I., Meiser-Stedman, R., & Brugha, T. S. (2019) · Psychological Medicine · doi:10.1017/s0033291718002283 · Cited by 988 · see citing works
Investigating alexithymia in autism: A systematic review and meta-analysis
Kinnaird, E., Stewart, C., & Tchanturia, K. (2019) · European Psychiatry · doi:10.1016/j.eurpsy.2018.09.004 · Cited by 545 · see citing works
‘Something needs to change’: Mental health experiences of young autistic adults in England
Crane, L., Adams, F., Harper, G., Welch, J., & Pellicano, E. (2019) · Autism · doi:10.1177/1362361318757048 · Cited by 397 · see citing works
Self-citationJones, L., Goddard, L., Hill, E. L., Henry, L. A., & Crane, L. (2014) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-014-2161-3 · Cited by 204 · see citing works
Self-citationMilosavljevic, B., Carter Leno, V., Simonoff, E., Baird, G., Pickles, A., Jones, C. R. G., Erskine, C., Charman, T., & Happé, F. (2016) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-015-2670-8 · Cited by 170 · see citing works
A transdiagnostic perspective on social anhedonia
Barkus, E., & Badcock, J. C. (2019) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2019.00216 · Cited by 165 · see citing works
Modeling the cognitive mechanisms linking autism symptoms and anxiety in adults.
Maisel, M. E., Stephenson, K. G., South, M., Rodgers, J., Freeston, M. H., & Gaigg, S. B. (2016) · Journal of Abnormal Psychology · doi:10.1037/abn0000168 · Cited by 132 · see citing works
Robinson, L. J., & Freeston, M. H. (2014) · Clinical Psychology Review · doi:10.1016/j.cpr.2014.03.003 · Cited by 119 · see citing works
Pickard, H., Hirsch, C., Simonoff, E., & Happé, F. (2020) · Journal of Child Psychology and Psychiatry · doi:10.1111/jcpp.13214 · Cited by 82 · see citing works
Depression in adolescents with ASD: a pilot RCT of a group intervention
Santomauro, D., Sheffield, J., & Sofronoff, K. (2016) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-015-2605-4 · Cited by 69 · see citing works
Huntjens, A., van den Bosch, L. M. C. W., Sizoo, B., Kerkhof, A., Huibers, M. J. H., & van der Gaag, M. (2020) · BMC Psychiatry · doi:10.1186/s12888-020-02531-1 · Cited by 50 · see citing works
Common and distinct impacts of autistic traits and alexithymia on social reward
Foulkes, L., Bird, G., Gökçen, E., McCrory, E., & Viding, E. (2015) · PLoS ONE · doi:10.1371/journal.pone.0121018 · Cited by 45 · see citing works
“Finally, the negative associations between both autistic traits and alexithymia and enjoyment of sexual relationships are in line with findings that individuals with ASD have fewer sexual experiences than their peers [44] and experience higher levels of physical anhedonia [9], and that alexithymia is associated with l…”
ResultHobson, H., Hogeveen, J., Brewer, R., Catmur, C., Gordon, B., Krueger, F., Chau, A., Bird, G., & Grafman, J. (2018) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2017.12.037 · Cited by 42 · see citing works
- Authors
- Berthoz, S., Lalanne, C., Crane, L., & Hill, E. L.
- Affiliations
- Université Paris-Sud (FR)
- London South Bank University (GB)
- Goldsmiths University of London (GB)
- Corresponding author
- Hill, Elisabeth L.
- Venue
- Psychiatry Research
- Publisher
- Elsevier BV
- Published
- 2013-08
- Volume
- 208
- Issue
- 3
- Pages
- 257-264
- ISSN
- 0165-1781 (ISSN-L)
- OpenAlex
- W2038113915
- Cited by
- 97
- References
- 72
- Citations by year
- 2026: 4 · 2025: 8 · 2024: 5 · 2023: 4 · 2022: 5 · 2021: 10 · 2020: 18 · 2019: 5 · 2018: 11 · 2017: 6 · 2016: 5 · 2015: 11 · 2014: 4 · 2013: 1
- FWCI
- 3.82
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Psychiatry Research (publishedVersion)
- PubMed (publishedVersion)
- Goldsmiths (University of London) (acceptedVersion)
- City Research Online (City University London) (acceptedVersion)
- UCL Discovery (University College London) (submittedVersion)
- University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
- Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Keywords
- autism spectrum disorder, broader autism phenotype, alexithymia, anhedonia, emotional responsiveness, Autism Spectrum Quotient, Toronto Alexithymia Scale
- MeSH terms
- Adult, Analysis of Variance, Child Development Disorders, Pervasive, Female, Humans, Male, Middle Aged, Phenotype, Psychiatric Status Rating Scales, Social Behavior, Mood Disorders, Young Adult, Self Report
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