电生理学证据表明,认知控制的灵活调整取决于反的意外情况
Jintao Xing1, Gilles Pourtois2, Qian Yang3
1Institute of Brain and Psychological Sciences, Sichuan Normal University, Chengdu, China; Brain and Cognition, KU Leuven, Leuven, Belgium.
Biological psychology
|May 30, 2025
概括
动机反通过改变大脑反应来塑造认知控制. 强化冲突或无冲突试验对大脑活动产生不同的影响,表明学习和动机如何调节冲突解决.
科学领域:
- 认知神经科学 认知神经科学
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
背景情况:
- 认知控制,即检测和解决冲突的能力,受到学习和动机的影响.
- 反意外性和动机价值影响认知控制的行为表现.
研究的目的:
- 通过反来研究潜在的认知控制调节的大脑机制.
- 检查选择性强化对一致或不一致的试验如何影响认知控制.
主要方法:
- 58名参与者完成了一个修改后的Stroop任务,并获得了区块级反.
- 反标志着一致 (无冲突) 或不一致 (冲突) 的试验,具有负或中性价值.
- 脑电图 (EEG) 记录了大脑活动,包括与事件相关的潜能 (ERP) 和正面的α/theta振荡.
主要成果:
- 在行为上,强化一致试验改善了冲突适应,而强化不一致试验减少了一致效应.
- 脑电图揭示了不同的神经模式:当不一致的试验得到加强时,刺激锁定ERP (N450,P1) 发生变化.
- 当同等试验得到加强时,反锁定的P3组件发生了变化;中额头的theta随着冲突和反而增加.
结论:
- 大脑利用不同的过程 (刺激锁定与反锁定) 来实现基于反突发事件的认知控制.
- 激励因素和学习显著塑造了冲突解决的神经执行.
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