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神经生理学机制是奖励前景对反应选择和抑制的差异影响的基础
Anna Helin Koyun1,2, Ann-Kathrin Stock3,4,5, Christian Beste1,2
1Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Schubertstrasse 42, 01309, Dresden, Germany.
Scientific reports
|July 5, 2023
概括
货币奖励可能会损害认知控制,导致更快但不太准确的反应. 这项研究揭示了奖励前景如何影响响应抑制期间的自动和受控过程,影响关键区域的大脑活动.
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 决策 决策 决策
背景情况:
- 目标导向的行为依赖于奖励处理和认知控制.
- 奖励和抑制控制之间的相互作用尚未完全理解.
- 调查奖励对抑制反应的自动与受控过程的影响至关重要.
研究的目的:
- 检查奖励前景在响应抑制期间如何调节自动和受控过程.
- 了解奖励对认知控制的影响背后的神经机制.
主要方法:
- 采用了一个Simon NoGo任务,并提供了基于绩效的金钱奖励.
- 使用电脑电图 (EEG) 进行时间信号分解和源定位.
- 分析了行为数据 (准确性,反应时间) 和神经生理测量 (P3幅度,皮层激活).
主要成果:
- 受奖的参与者表现出更快的响应,但准确性较低 (速度-准确性权衡).
- 奖励前景在响应抑制过程中放大了自动和受控过程之间的相互作用 (更大的Simon NoGo效应).
- 神经生理学发现显示P3振幅变化和额头,头顶和体感皮层的差异激活.
结论:
- 奖励前景可以通过增强自动过程,对认知控制,特别是响应抑制产生不利影响.
- 特定的神经解剖结构,包括下面的额头,额头和体感皮质,都参与了抑制反应的奖励调制.
- 奖励触发的绩效权衡可能会对抑制控制的有效性产生负面影响.
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