预测的动作效应通过预先激活阿尔法振荡来塑造动作表示
Xin Wang1, Shitao Chen1, Keyang Wang1
1Department of Psychology and Behavioural Sciences, Zhejiang University, Hangzhou, China.
Communications biology
|February 22, 2025
概括
感官反,或行动效应,在行动发生之前就影响了行动. 这项研究表明,可预测的作用效应将注意力转移到它们的位置,证明了通过大脑中的α振荡进行预激活.
科学领域:
- 认知神经科学 认知神经科学
- 发动机控制器的控制器
- 心理学 心理学 心理学
背景情况:
- 动作通常伴随着感官反,称为动作效应.
- 理论模型表明,动作效应在动作执行之前被预先激活,以影响运动控制.
研究的目的:
- 研究可预测的动作效应如何影响动作表示.
- 探索作用效应预激活的基础的神经机制,特别是当空间位置是关键时.
主要方法:
- 参与者报告了使用旋转的时钟针自愿按键的时间.
- 在按键后引入了一个可预测的听觉动作效应 (250毫秒的延迟).
- 使用脑电图 (EEG) 来测量大脑活动,专注于α振荡.
主要成果:
- 一个可预测的动作效应将参与者的视觉空间注意力转移到效应开始的位置.
- 这种注意力转移发生在自愿行动执行前大约1秒.
- 视觉皮层中的α振荡的横向化先行并预测了这种注意力转移.
结论:
- 动作效应,特别是那些具有空间组件的动作效应,通过预先激活来影响动作表示.
- 视觉皮层中的α振荡横向化是实现动作效应预激活的神经机制.
- 这一发现为运动控制和注意力的预测性提供了洞察力.
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