关于冲动性和强迫性对基于模型的表现神经相关的影响
Kerstin Dück1, Raoul Wüllhorst2, Rebecca Overmeyer2
1Faculty of Psychology, Chair for Addicition Research, Technische Universität Dresden, 01062, Dresden, Germany. kerstin.dueck@tu-dresden.de.
Scientific reports
|September 10, 2024
概括
这项研究将反相关的消极性 (FRN) 与基于模型 (MB) 的控制联系起来,并揭示了较高的强迫性与受损的P3对奖励预测错误 (RPE) 的反应有关,这表明心理模型缺陷.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 计算精神病学是一种计算精神病学.
背景情况:
- 目标导向行为障碍是精神障碍的跨诊断因素.
- 强迫性与减少基于模型 (MB) 的控制有关,但冲动性在强化学习中的作用未得到充分研究.
- 了解MB控制的神经机制对于心理健康研究至关重要.
研究的目的:
- 使用EEG调查MB控制的神经机制.
- 检查冲动性和强迫性对MB控制的影响.
- 将电生理学信号与MB控制和自我报告特征的行为措施联系起来.
主要方法:
- 在一个两步决策任务中,在238个个体中使用了脑电图 (EEG).
- 进行单项试验分析,以检查与反相关的负面性 (FRN) 和P3幅度.
- 奖励预测错误 (RPE) 对行为MB控制 (w) 和自我报告的冲动性/强迫性的回归EEG信号效应.
主要成果:
- 根据过渡类型和RPE价值调节了FRN幅度,这表明存在价值效应.
- 通过罕见的过渡和RPE来增强P3振幅,可能反映出惊喜.
- FRN的RPE效应与MB控制相关 (w);RPE的P3调制与强迫性负相关.
结论:
- FRN与MB控制有关,在MB控制较高的个体中效果更强.
- 强迫性与RPE缺乏P3反应有关,这表明强迫性个体的心理模式受损.
- 这些发现提供了关于目标导向行为的神经基础及其在精神障碍中的破坏的见解.
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