Prediction error representation in individuals with generalized anxiety disorder during passive avoidance

Stuart F White, Marilla Geraci, Elizabeth Lewis, Joseph Leshin, Cindy Teng, Bruno Averbeck, Harma Meffert, Monique Ernst, Robert James Blair, Christian Grillon, Karina Blair

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Objective: Deficits in reinforcement-based decision making havebeen reported in generalized anxiety disorder. However, the pathophysiology of these deficits is largely unknown; published studies have mainly examined adolescents, and the integrity of core functional processes underpinning decision making remains undetermined. In particular, it is unclear whether the representation of reinforcement prediction error (PE) (the difference between received and expected reinforcement) is disrupted in generalized anxiety disorder. This study addresses these issues in adults with the disorder. Method: Forty-six unmedicated individuals with generalized anxiety disorder and 32 healthy comparison subjects groupmatched on IQ, gender, and age performed a passive avoidance taskwhileundergoing functionalMRI.Data analyseswere performed using a computational modeling approach. Results: Behaviorally, individuals with generalized anxiety disorder showed impaired reinforcement-based decision making. Imaging results revealed that during feedback, individualswith generalized anxiety disorder relative to healthy subjects showed a reduced correlation between PE and activity within the ventromedial prefrontal cortex, ventral striatum, and other structures implicated in decision making. In addition, individuals with generalized anxiety disorder relative to healthy participants showed a reduced correlation between punishment PEs, but not reward PEs, and activity within the left and right lentiform nucleus/putamen. Conclusions: This is the first study to identify computational impairments during decision making in generalized anxiety disorder. PE signaling is significantly disrupted in individuals with the disorder and may lead to their decision-making deficits and excessive worry about everyday problems by disrupting the online updating ("reality check") of the current relationship between the expected values of current response options and the actual received rewards and punishments.

Original languageEnglish (US)
Pages (from-to)110-117
Number of pages8
JournalAmerican Journal of Psychiatry
Volume174
Issue number2
DOIs
StatePublished - Feb 1 2017

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Anxiety Disorders
Decision Making
Healthy Volunteers
Punishment
Reward
Corpus Striatum
Putamen
Prefrontal Cortex
Reinforcement (Psychology)

ASJC Scopus subject areas

  • Psychiatry and Mental health

Cite this

Prediction error representation in individuals with generalized anxiety disorder during passive avoidance. / White, Stuart F; Geraci, Marilla; Lewis, Elizabeth; Leshin, Joseph; Teng, Cindy; Averbeck, Bruno; Meffert, Harma; Ernst, Monique; Blair, Robert James; Grillon, Christian; Blair, Karina.

In: American Journal of Psychiatry, Vol. 174, No. 2, 01.02.2017, p. 110-117.

Research output: Contribution to journalArticle

White, Stuart F ; Geraci, Marilla ; Lewis, Elizabeth ; Leshin, Joseph ; Teng, Cindy ; Averbeck, Bruno ; Meffert, Harma ; Ernst, Monique ; Blair, Robert James ; Grillon, Christian ; Blair, Karina. / Prediction error representation in individuals with generalized anxiety disorder during passive avoidance. In: American Journal of Psychiatry. 2017 ; Vol. 174, No. 2. pp. 110-117.
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