title: Trait-related decision making impairment in obsessive-compulsive disorder: evidence from decision making under ambiguity but not decision making under risk.
abstract: 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.
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.|Laboratory of Neuropsychology, Anhui Medical University, Hefei, China.
authors.forename: Long
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Mental Health Center of Anhui Province, Hefei, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Dong
authors.affiliation: Mental Health Center of Anhui Province, Hefei, China.
authors.forename: Yifu
authors.initials: Y
authors.lastname: Ji
authors.affiliation: Mental Health Center of Anhui Province, Hefei, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Tao
authors.affiliation: Mental Health Center of Anhui Province, Hefei, China.
authors.forename: Xuequan
authors.initials: X
authors.lastname: Chen
authors.affiliation: Psychological Consultation Center of Anhui Medical University, Hefei, China.
authors.forename: Jianguo
authors.initials: J
authors.lastname: Ye
authors.affiliation: Laboratory of Neuropsychology, Anhui Medical University, Hefei, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Laboratory of Neuropsychology, Anhui Medical University, Hefei, China.
authors.forename: Fengqiong
authors.initials: F
authors.lastname: Yu
authors.affiliation: Laboratory of Neuropsychology, Anhui Medical University, Hefei, China.
authors.forename: Chunyan
authors.initials: C
authors.lastname: Zhu
authors.affiliation: Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.|Laboratory of Neuropsychology, Anhui Medical University, Hefei, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D003657:Decision Making; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D009771:Obsessive-Compulsive Disorder / Q000473:pathology*; D012309:Risk-Taking; D035501:Uncertainty; D055815:Young Adult