在奖励评估过程中,认知和身体努力支出所产生的可分离的神经后效应
Huiping Jiang1,2, Ya Zheng3
1Department of Psychology, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou Higher Education Mega Center, Guangzhou, 510006, China.
Cognitive, affective & behavioral neuroscience
|October 11, 2023
概括
以前的努力,无论是认知还是身体,通过减少大脑活动来改变奖励值. 这些影响在早期是普遍的,但在奖励处理过程中会变得更具体,影响我们对奖励的评价.
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
- 决策科学 决策科学 决策科学
背景情况:
- 努力支出影响后续奖励的主观价值,这种现象被称为奖励后效应.
- 不同类型的努力 (认知与物理) 如何调节这些奖励后效应的神经支仍然不完全理解.
研究的目的:
- 研究由认知与身体努力调节的奖励后效应背后的总域和特定域的神经机制.
- 在奖励评估过程中检查与努力相关的神经调制的时间动态.
主要方法:
- 电脑电图 (EEG) 记录了32名参与者在一项任务中所做的工作 (认知或身体) 阶段,其次是奖励阶段 (博游戏).
- 分析侧重于电皮活动,包括与事件相关的潜力 (例如,奖励积极性,P3) 和振荡 (例如,三角波段).
主要成果:
- 努力支出导致奖励反评估期间皮质活动减少.
- 努力效应在奖励评估的早期阶段是域一般的 (奖励积极性),但在后期阶段是域特定的 (P3,三角振荡).
- 劳动力支出提高了P3对反价值的敏感性,无论劳动力类型如何.
结论:
- 认知和身体的努力对奖励后效应产生了共同和不同的神经影响.
- 通过努力对奖励后效应的神经调节发生在不同的时间阶段,涉及到一般和特定的机制.
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