Increased decision thresholds trigger extended information gathering across the compulsivity spectrum.

ABSTRACT: Indecisiveness and doubt are cognitive phenotypes of compulsive disorders, including obsessive-compulsive disorder. Little is known regarding the cognitive mechanisms that drive these behaviours across a compulsivity spectrum. Here, we used a sequential information gathering task to study indecisiveness in subjects with high and low obsessive-compulsive scores. These subjects were selected from a large population-representative database, and matched for intellectual and psychiatric factors. We show that high compulsive subjects sampled more information and performed better when sampling was cost-free. When sampling was costly, both groups adapted flexibly to reduce their information gathering. Computational modelling revealed that increased information gathering behaviour could be explaine

SUBMITTER: Hauser TU 

PROVIDER: S-EPMC5802702 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature