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否定的行为是在主要运动皮层中模拟的
W Dupont1, C Papaxanthis1, L Lurquin1
1INSERM UMR1093-CAPS, Université de Bourgogne, UFR des Sciences du Sport, F-21000, Dijon, France.
Neuroscience
|December 14, 2024
概括
否定动作句子最初会激活运动系统,类似于肯定动作. 神经处理的差异可能发生在主要运动皮层之外,影响语言理解.
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
- 心理语言学 心理语言学
背景情况:
- 在动力系统中否定动作的表现仍在争论中.
- 目前尚不清楚否定的动作句子是否最初模拟了该动作.
研究的目的:
- 为了调查运动系统激活的否定行为.
- 在句子处理过程中探索皮质脊髓刺激性 (CSE) 和抑制性 (SICI).
主要方法:
- 两项实验使用跨磁刺激来测量CSE和SICI.
- 参与者阅读肯定和否定的行动/不行动句子.
- 在动词呈现后的各种延迟时间进行了测量.
主要成果:
- 采取行动的句子 (肯定和否定) 显示出更多的CSE比不采取行动的句子.
- 与其他部分相比,CSE在肯定和否定行动句子中都增加了.
- SICI在较长的延迟时增加,不管动词形式如何,对于否定的动作没有早期抑制.
结论:
- 否定的动作似乎最初是在电机系统中模拟的.
- 肯定和否定行为之间的早期神经差异可能起源于主要运动皮层之外.
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