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准备采取行动遵循贝叶斯推理规则.

Luca Tarasi1,2, Chiara Tabarelli de Fatis1, Margherita Covelli1

  • 1Department of Psychology, University of Bologna and Centre for Studies and Research in Cognitive Neuroscience, University of Bologna, Cesena, Italy.

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概括
此摘要是机器生成的。

大脑使用预测模型来准备行动,影响运动兴奋和决策. 使用这些预测的个体差异与精神分裂和自闭症特征有关.

关键词:
认知神经科学是一种认知神经科学.心理学 心理学 心理学

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科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 发动机控制器的控制器

背景情况:

  • 贝叶斯式大脑理论提出了感官证据预测的预测模型.
  • 这些预测模型可以扩展到运动系统,影响行动准备.

研究的目的:

  • 调查预测模型是否影响运动系统,特别是皮层-脊柱刺激能力 (CSE).
  • 检查先前的期望如何影响运动准备和决策.
  • 探索预测处理策略中的个体差异.

主要方法:

  • 62名参与者执行了一个概率歧视任务.
  • 在初级运动皮层 (M1s) 上应用双边单脉冲横磁刺激 (TMS).
  • 记录了发动机唤起的潜能 (MEP),以评估CSE对一致与不一致的动作.
  • 漂移扩散模型分析了欧洲议会议员对决策偏见的影响.

主要成果:

  • 之前的期望调节了CSE,抑制了对不一致行动的准备.
  • 试验对试验的MEP变化显著影响了决策偏见.
  • 在CSE调制中的个体差异揭示了不同的预测风格:"信徒" (依赖先验) 和"经验主义者" (低先验).
  • 这些风格分别与精神分裂和自闭症特征有关.

结论:

  • 预测模型被整合到行动表示中.
  • 预先驱动的CSE调制反映了预测策略的个体间差异.
  • 这项研究提供了关于预测处理在行动控制和决策中的神经机制的见解.