上下注意力将行为和神经事件边界转移到重叠事件脚本的叙述中
Alexandra De Soares1, Tony Kim1, Franck Mugisho2
1Department of Psychology, Columbia University, New York, NY 10027, USA.
Current biology : CB
|October 4, 2024
概括
大脑使用先前的知识来理解事件,特定的脚本影响我们如何感知事件时间. 激活基于位置的脚本改变了事件细分,证明了神经动态的自上而下的调制.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 记忆研究 记忆研究
背景情况:
- 了解复杂的经验依赖于对事件序列的模式知识.
- 大脑从存储的脚本中构建事件表示.
- 激活脚本会影响时间事件细分.
研究的目的:
- 研究大脑如何从图形脚本中构建事件表示.
- 检查脚本激活如何影响时间事件细分.
- 确定基于脚本的事件处理的神经相关性.
主要方法:
- 开发了16个音频叙述,结合了地点和社会事件脚本.
- 使用功能磁共振成像 (fMRI) 和在线研究.
- 应用了一个隐藏的马尔科夫模型来识别神经事件边界.
主要成果:
- 角性回旋,副海马回旋和中间前额叶皮层 (mPFC) 响应了位置和社会脚本.
- 激活位置脚本改变了主观事件界限,使其与叙事变化保持一致.
- 在mPFC中神经事件边界与与会者被位置调整时与位置相关的线索保持一致.
结论:
- 神经事件动态被自上而下的目标积极调节.
- 叙述事件的表现是通过激活时间结构化的先前知识来构建的.
- 特定的大脑区域在多个领域中跟踪图表序列.
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