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度调节食物成中的奖励处理:来自事件相关潜力的证据

Yatong Wen¹, Yuan Zeng², Xinyu Zhou¹

¹State Key Laboratory of Cognitive Science and Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.

|November 29, 2025

概括

食物成 (FA) 涉及损害的奖励处理,特别是在食物预期和反,特别是当足. 这种神经缺陷,以减少反相关消极性 (FRN) 为标志,与成严重程度相关.

科学领域:

神经科学是一个神经科学.
精神病学是一个精神病学.
成研究研究成研究

背景情况:

食物成 (FA) 是一个日益严重的公共卫生问题.
了解FA中奖励处理的神经机制对于开发有效干预措施至关重要.
现有的研究表明奖励回路的改变,但在不同代谢状态期间的特定神经相关性需要进一步调查.

研究的目的:

研究FA患者的奖励处理缺陷的神经相关性.
检查与FA和健康对照 (HC) 个体之间的奖励预期和反相关的事件相关潜力 (ERP) 的差异.
探索代谢状态 (饥饿与腹) 对这些神经反应的影响及其与成严重程度的相关性.

主要方法:

在饥饿和腹状态下,54名参与者 (患有FA和HC的个人) 在食物和金钱奖励任务期间接受了脑电图 (EEG).
测量刺激前的消极性 (SPN) 用于奖励预期和反相关的消极性 (FRN) 用于奖励反.
使用耶鲁食品成量表 (YFAS) 评估成严重程度,并使用重复测量ANOVA和相关性分析数据.

主要成果:

与HC相比,患有FA的个体表现出更高的食物奖励预期和更大的SPN,在腹时获得食物奖励.
在两个代谢状态的FA组中观察到FRN显著减弱,表明奖励反处理受损.
货币奖励没有引起群体差异,这表明了特定于食品的赤字.
FRN振幅与YFAS分数负相关,将受损的反处理与更大的成严重程度联系起来.

结论:

食物成的特点是食物奖励处理中的特定缺陷,特别明显在和状态.
损坏的FRN是这些缺陷的关键神经标志物,与食物成的严重程度有关.
这些发现强调了在FA中不受管制的奖励反处理的关键作用,并建议FRN作为干预的潜在目标.

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