Cited by 164Bipolar Disorder and TreatmentNeural and Behavioral Psychology StudiesTreatment of Major Depression

Reward processing in unipolar and bipolar depression: A functional MRI study

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Redlich, Ronny, Dohm, Katharina, Grotegerd, Dominik, Opel, Nils, Zwitserlood, Pienie, Heindel, Walter, Arolt, Volker, Kugel, Harald +1 more·2015·Neuropsychopharmacology

Abstract

Differentiating bipolar disorders (BD) from unipolar depression (UD) remains a major clinical challenge. The identification of neurobiological markers may help to differentiate these disorders, particularly during depressive episodes. This cross-sectional study, including 33 patients with UD, 33 patients with BD, and 34 healthy controls, is one of the first to directly compare UD and BD with respect to reward processing. A card-guessing paradigm was employed and brain activity associated with reward processing was investigated by means of fMRI. A 3 (group) × 2 (condition: reward>control, loss>control) ANOVA was conducted using the nucleus accumbens (NAcc) as ROI. Furthermore, a whole-brain approach was applied. A functional connectivity analysis was performed to characterize diagnosis-related alterations in the functional coupling between the NAcc and other brain areas. The ANOVA revealed higher activity for healthy controls (HCs) than for BD and UD in the NAcc during reward processing. Moreover, UD showed a higher functional connectivity between the NAcc and the VTA than HC. The patients groups could be differentiated in that BD showed a decreased activation, in the reward condition, of the NAcc, caudate nucleus, thalamus, putamen, insula, and prefrontal areas compared with UD. These results may help to refine the understanding of neural correlates of reward processing in both disorders, and to understand the neural underpinnings of anhedonia, a core symptom of depressive episodes.

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  • Reduced activation during consummatory phase of reward in NAc and caudate in MDD vs HCs.

    “Furthermore, reduced activation during the consummatory phase of reward was shown for the NAc and caudate in MDD patients compared with HCs (Pizzagalli et al., 2009; Redlich et al., 2015).”

    From Circuit Mechanisms of Reward, Anhedonia, and Depression (2019) · cites this paper as Redlich et al., 2015

  • Increased connectivity between the NAc and the VTA in MDD patients vs HCs was described during reward processing in an fMRI task focusing on reward feedback.

    “Furthermore, increased connectivity between the NAc and the VTA in MDD patients vs HCs was described during reward processing in an fMRI task focusing on reward feedback (Redlich et al., 2015).”

    From Circuit Mechanisms of Reward, Anhedonia, and Depression (2019) · cites this paper as Redlich et al., 2015

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  1. American Psychiatric Association (2000). Diagnostical and Statis- tical Manual of Mental Disorders: DSM-IV-TR: 4th Edition Text Revision. APA Press: Washington, DC, USA, 2000.

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Authors
Redlich, R., Dohm, K., Grotegerd, D., Opel, N., Zwitserlood, P., Heindel, W., Arolt, V., Kugel, H., & Dannlowski, U.
Affiliations
  • University of Münster (DE)
  • Philipps University of Marburg (DE)
Corresponding author
Dannlowski, Udo
Venue
Neuropsychopharmacology
Published
2015-04-16
Volume
40
Issue
11
Pages
2623-2631
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W1976921288
Cited by
164
References
62
Citations by year
2026: 10 · 2025: 13 · 2024: 5 · 2023: 8 · 2022: 14 · 2021: 32 · 2020: 16 · 2019: 16 · 2018: 15 · 2017: 13 · 2016: 16 · 2015: 6
FWCI
13.51
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft (DA1151/5-1, FOR 2107)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
reward processing, major depressive disorder, bipolar disorder, nucleus accumbens, ventral tegmental area, functional connectivity, anhedonia, neural correlates of depression, differential diagnosis of depression, caudate nucleus, thalamus, insula, prefrontal cortex
MeSH terms
Adult, Analysis of Variance, Bipolar Disorder, Brain, Brain Mapping, Cross-Sectional Studies, Depressive Disorder, Diagnosis, Differential, Female, Humans, Magnetic Resonance Imaging, Male, Mental Processes, Neural Pathways, Neuropsychological Tests, Reward, Signal Processing, Computer-Assisted

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