共同和独特的神经生理过程,支持停止和修改行动
Mario Hervault1,2,3, Jan R Wessel4,2,3
1Department of Psychological and Brain Sciences, University of Iowa, Iowa City, Iowa 52242 mario.hervault@univ-grenoble-alpes.fr.
概括
抑制性控制涉及两个不同的阶段:一个最初的广泛的"暂停"和随后的选择性"回调"阶段. 这些通过EEG和EMG识别的过程有助于解释我们如何停止和改变行动.
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
- 人类运动控制人体运动控制
背景情况:
- 抑制性控制对于行为灵活性至关重要,并通过行动停止任务进行研究.
- 抑制性控制的神经生理学特征受到辩论,需要进一步调查潜在的过程.
研究的目的:
- 在简单的行动停止与行动修订场景中区分神经生理过程.
- 测试来自抑制性控制的两阶段"暂停然后取消"模型的假设.
主要方法:
- 三项涉及人类参与者 (女性和男性) 的实验.
- 使用脑电图 (EEG) 和肌电图 (EMG) 来测量神经生理动力学.
- 在简单的停止和复杂的动作修订任务中比较神经活动.
主要成果:
- 一个早期的,广泛的"暂停"过程 (正面EEGβ爆发,抑制皮质脊髓刺激) 发生在停止和修改行动期间.
- 在修订过程中,运动活动被部分抑制和调节.
- 后来,选择性的"回调"阶段 (前中心EEG) 随着行动修订的复杂性而扩展.
结论:
- 抑制性控制在至少两个不同的阶段随着时间的推移而运作:"暂停"和"重新开始".
- 神经生理学特征与这些阶段保持一致,并根据修订复杂度进行调制.
- 这些发现支持抑制控制的两阶段模型,并澄清了它的神经执行.
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