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• W4285297812 abstract "Gambling disorder is a behavioral addiction that negatively impacts personal finances, work, relationships and mental health. In this pre-registered study (<a href=https://osf.io/5ptz9/ target=_blank>https://osf.io/5ptz9/</a>) we investigated the impact of real-life gambling environments on two computational markers of addiction, temporal discounting and model-based reinforcement learning. Gambling disorder is associated with increased temporal discounting and reduced model-based learning. Regular gamblers (n = 30, DSM-5 score range 3–9) performed both tasks in a neutral (café) and a gambling-related environment (slot-machine venue) in counterbalanced order. Data were modeled using drift diffusion models for temporal discounting and reinforcement learning via hierarchical Bayesian estimation. Replicating previous findings, gamblers discounted rewards more steeply in the gambling-related context. This effect was positively correlated with gambling related cognitive distortions (pre-registered analysis). In contrast to our pre-registered hypothesis, model-based reinforcement learning was improved in the gambling context. Here we show that temporal discounting and model-based reinforcement learning are modulated in opposite ways by real-life gambling cue exposure. Results challenge aspects of habit theories of addiction, and reveal that laboratory-based computational markers of psychopathology are under substantial contextual control." @default.
• W4285297812 created "2022-07-14" @default.
• W4285297812 creator A5051054354 @default.
• W4285297812 creator A5057548135 @default.
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• W4285297812 date "2022-01-01" @default.
• W4285297812 modified "2023-10-01" @default.
• W4285297812 title "Gambling Environment Exposure Increases Temporal Discounting but Improves Model-Based Control in Regular Slot-Machine Gamblers" @default.
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• W4285297812 doi "https://doi.org/10.5334/cpsy.84" @default.
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