Disorders of compulsivity: a common bias towards learning habits.
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ABSTRACT:
SUBMITTER: Voon V
PROVIDER: S-EPMC4351889 | biostudies-literature | 2015 Mar
REPOSITORIES: biostudies-literature
Publications
Disorders of compulsivity: a common bias towards learning habits.
Voon V V Derbyshire K K Rück C C Irvine M A MA Worbe Y Y Enander J J Schreiber L R N LR Gillan C C Fineberg N A NA Sahakian B J BJ Robbins T W TW Harrison N A NA Wood J J Daw N D ND Dayan P P Grant J E JE Bullmore E T ET
Molecular psychiatry 20140520 3
Why do we repeat choices that we know are bad for us? Decision making is characterized by the parallel engagement of two distinct systems, goal-directed and habitual, thought to arise from two computational learning mechanisms, model-based and model-free. The habitual system is a candidate source of pathological fixedness. Using a decision task that measures the contribution to learning of either mechanism, we show a bias towards model-free (habit) acquisition in disorders involving both natural ...[more]
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