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• W2274510907 abstract "Although individuals with schizophrenia show impaired feedback-driven learning on probabilistic reversal learning (PRL) tasks, the specific factors that contribute to these deficits remain unknown. Recent work has suggested several potential causes including neurocognitive impairments, clinical symptoms, and specific types of feedback-related errors. To examine this issue, we administered a PRL task to 126 stable schizophrenia outpatients and 72 matched controls, and patients were retested 4 weeks later. The task involved an initial probabilistic discrimination learning phase and subsequent reversal phases in which subjects had to adjust their responses to sudden shifts in the reinforcement contingencies. Patients showed poorer performance than controls for both the initial discrimination and reversal learning phases of the task, and performance overall showed good test-retest reliability among patients. A subgroup analysis of patients (n = 64) and controls (n = 49) with good initial discrimination learning revealed no between-group differences in reversal learning, indicating that the patients who were able to achieve all of the initial probabilistic discriminations were not impaired in reversal learning. Regarding potential contributors to impaired discrimination learning, several factors were associated with poor PRL, including higher levels of neurocognitive impairment, poor learning from both positive and negative feedback, and higher levels of indiscriminate response shifting. The results suggest that poor PRL performance in schizophrenia can be the product of multiple mechanisms." @default.
• W2274510907 created "2016-06-24" @default.
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• W2274510907 date "2016-02-16" @default.
• W2274510907 modified "2023-10-16" @default.
• W2274510907 title "Probabilistic Reversal Learning in Schizophrenia: Stability of Deficits and Potential Causal Mechanisms" @default.
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• W2274510907 doi "https://doi.org/10.1093/schbul/sbv226" @default.
• W2274510907 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4903059" @default.
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