关于岛皮质在抑制控制中的作用:从α和theta定向连接力学动态的见解
Patrick Eggert1, Moritz Mückschel1, Nasibeh Talebi1
1Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.
Cerebral cortex (New York, N.Y. : 1991)
|October 17, 2025
概括
岛内皮质充当大脑枢纽,通过α和theta脑波指导信息流,以控制反应. 这凸显了它在认知控制和适应行为以满足新需求中的作用.
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
- 计算神经科学是一种神经科学.
背景情况:
- 抑制预强反应对于目标导向的行为和适应环境变化至关重要.
- 认知控制涉及复杂的神经相互作用,特别是和α脑波活动,影响大脑区域的信息流动.
研究的目的:
- 研究岛内皮层在认知控制和响应抑制中的作用.
- 阐明alpha和theta频段活动在抑制任务期间协调神经信息流的相互作用.
主要方法:
- 在 104 名健康参与者的脑电图 (EEG) 数据上利用光束成形和定向连接性分析.
- 在需要响应抑制和认知控制的任务中检查了alpha和theta频段振荡.
主要成果:
- 岛内皮质被确定为一个中心枢纽,通过α和θ振荡调解前叶,下额皮质和上中额皮圈之间的信息流.
- 阿尔法活性与相关的刺激选择有关,而活动与重新配置感知-动作关联有关,以抑制反应.
- 较高的认知控制需求显示,在岛皮层内,从theta到alpha带活动的信息流向有针对性,这表明它在实施抑制控制中的作用.
结论:
- 岛内皮质在调节刺激-反应映射和感知-动作重新配置方面发挥着关键作用.
- 在岛内皮层内,theta和alpha活动之间有针对性的信息交换是认知控制和响应抑制的关键机制.
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