Altered cingulo-striatal function underlies reward drive deficits in schizophrenia

Il Ho Park, Ji Won Chun, Hae Jeong Park, Min Seong Koo, Sunyoung Park, Seok Hyeong Kim, Jae-Jin Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Amotivation in schizophrenia is assumed to involve dysfunctional dopaminergic signaling of reward prediction or anticipation. It is unclear, however, whether the translation of neural representation of reward value to behavioral drive is affected in schizophrenia. In order to examine how abnormal neural processing of response valuation and initiation affects incentive motivation in schizophrenia, we conducted functional MRI using a deterministic reinforcement learning task with variable intervals of contingency reversals in 20 clinically stable patients with schizophrenia and 20 healthy controls. Behaviorally, the advantage of positive over negative reinforcer in reinforcement-related responsiveness was not observed in patients. Patients showed altered response valuation and initiation-related striatal activity and deficient rostro-ventral anterior cingulate cortex activation during reward approach initiation. Among these neural abnormalities, rostro-ventral anterior cingulate cortex activation was correlated with positive reinforcement-related responsiveness in controls and social anhedonia and social amotivation subdomain scores in patients. Our findings indicate that the central role of the anterior cingulate cortex is in translating action value into driving force of action, and underscore the role of the cingulo-striatal network in amotivation in schizophrenia.

Original languageEnglish
Pages (from-to)229-236
Number of pages8
JournalSchizophrenia Research
Volume161
Issue number2-3
DOIs
Publication statusPublished - 2015 Feb 1

Fingerprint

Corpus Striatum
Reward
Schizophrenia
Gyrus Cinguli
Motivation
Anhedonia
Magnetic Resonance Imaging
Drive
Learning
Reinforcement (Psychology)

All Science Journal Classification (ASJC) codes

  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Park, Il Ho ; Chun, Ji Won ; Park, Hae Jeong ; Koo, Min Seong ; Park, Sunyoung ; Kim, Seok Hyeong ; Kim, Jae-Jin. / Altered cingulo-striatal function underlies reward drive deficits in schizophrenia. In: Schizophrenia Research. 2015 ; Vol. 161, No. 2-3. pp. 229-236.
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Altered cingulo-striatal function underlies reward drive deficits in schizophrenia. / Park, Il Ho; Chun, Ji Won; Park, Hae Jeong; Koo, Min Seong; Park, Sunyoung; Kim, Seok Hyeong; Kim, Jae-Jin.

In: Schizophrenia Research, Vol. 161, No. 2-3, 01.02.2015, p. 229-236.

Research output: Contribution to journalArticle

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