Trait-related decision making impairment in obsessive-compulsive disorder: evidence from decision making under ambiguity but not decision making under risk

This study aimed to investigate whether deficits in decision making were potential endophenotype markers for OCD considering different phases of the disease. Fifty-seven non-medicated OCD patients (nmOCD), 77 medicated OCD patients (mOCD), 48 remitted patients with OCD (rOCD) and 115 healthy control...

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Bibliographic Details
Published in:Scientific reports 2015-11, Vol.5 (1), p.17312-17312, Article 17312
Main Authors: Zhang, Long, Dong, Yi, Ji, Yifu, Tao, Rui, Chen, Xuequan, Ye, Jianguo, Zhang, Lei, Yu, Fengqiong, Zhu, Chunyan, Wang, Kai
Format: Article
Language:English
Subjects:
631/378/1788
631/378/2649
631/477/2811
Adolescent
Adult
Case-Control Studies
Cognition
Decision Making
Female
Humanities and Social Sciences
Humans
Male
Middle Aged
multidisciplinary
Neuropsychological Tests
Obsessive compulsive disorder
Obsessive-Compulsive Disorder - pathology
Risk-Taking
Science
Uncertainty
Young Adult
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Summary:This study aimed to investigate whether deficits in decision making were potential endophenotype markers for OCD considering different phases of the disease. Fifty-seven non-medicated OCD patients (nmOCD), 77 medicated OCD patients (mOCD), 48 remitted patients with OCD (rOCD) and 115 healthy controls were assessed with the Iowa Gambling Task (IGT), which measured decision making under ambiguity and the Game of Dice Task (GDT), which measured decision making under risk. While the three patients groups showed impaired performance on the IGT compared with healthy controls, all patients showed intact performance on the GDT. Furthermore, the rOCD patients showed a preference for deck B, indicating that they showed more sensitivity to the frequency of loss than to the magnitude of loss, whereas the mOCD patients showed a preference for deck A, indicating that they had more sensitivity to the magnitude of loss than to the frequency of loss. These data suggested that OCD patients had trait-related impairments in decision making under ambiguity but not under risk and that dissociation of decision making under ambiguity and under risk is an appropriate potential neurocognitive endophenotype for OCD. The subtle but meaningful differences in decision making performance between the OCD groups require further study.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep17312