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Updated: Jun 26, 2025

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Corticospinal Excitability Modulation During Action Observation
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执行运动动作增强了社会奖励处理,并调节了神经对预测线索的处理
Caroline Di Bernardi Luft1, Iman Atchoum2, Frederike Beyer2
1Brunel University London.
Journal of cognitive neuroscience
|May 13, 2024
概括
积极寻求社会奖励可以提高大脑对积极反的敏感性,并改变对结果的预期. 这与被动接受反形成鲜明对比,这表明运动行为在社会奖励处理中发挥着关键作用.
科学领域:
- 认知神经科学 认知神经科学
- 社会神经科学是一种社会神经科学.
- 奖励的神经科学奖励的神经科学
背景情况:
- 关联式学习支着人类的行为,之前的工作表明运动行为增强神经对货币奖励的反应.
- 在精神疾病中,社会无情是普遍存在的,这引发了关于取决于行动的奖励增强是否延伸到社会反的问题.
- 了解行动,奖励处理和协会学习之间的相互作用对于解决社会缺陷至关重要.
研究的目的:
- 调查执行某种行为是否会增强神经对社会奖励的反应,并调节关联性学习.
- 为了检查行动与被动对大脑处理社会奖励和惩罚线索的影响.
- 探索社会反预期的行动依赖调制的基础的神经机制.
主要方法:
- 开发了一项新任务,参与者 (n=66) 根据积极 (按按) 或被动 (等待) 试验获得社会奖励/惩罚反.
- 使用脑电图 (EEG) 来记录神经对预测线索和社会反的反应.
- 进行了连接分析 (theta同步),以评估上下注意力调制.
主要成果:
- 与被动接待相比,在动作引起的社会奖励中观察到一个增强的奖励积极性 (RewP).
- 在预测负面反的线索中发现了增强的N2成分,特别是在活跃试验中.
- 只有在被动试验中,对负反线索的线索锁定P3振幅被降低,这表明预期结果的取决于行动的调制.
结论:
- 积极获得社会反会增强奖励灵敏度,证明了行动增强奖励处理对社会领域的概括.
- 执行运动动作调节了对社会结果的预期,影响神经对预测线索的反应.
- 活跃试验中theta同步度的增加表明,在取决于行动的社会反获取过程中,注意力控制的上下增强.
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