行动观察网络的配置取决于观察者的目标
Xiaojue Zhou1, Daniel A Stehr2, John Pyles3
1University of California, Irvine, Irvine, CA, United States.
Neuropsychologia
|October 20, 2023
概括
对动作动力学的注意力加强了动作观察网络 (AON) 内的连接,特别是右后上时 (pSTS) 和右下额叶皮层 (IFC) 之间的连接. 这突出了一个右侧网络,用于观察运动细节.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 社会认知是指社会认知.
背景情况:
- 动作观察涉及一个分布式网络,包括下额叶皮层 (IFC),后上角 (pSTS) 和下叶 (IPL).
- 这个网络中的不同区域处理感知行为属性,预测结果,推断演员的目标.
- 上下注意力可以调节神经表征,根据像动力学这样的参与特征来利它们.
研究的目的:
- 研究注意力如何调节行动观察网络 (AON) 内的功能连接.
- 为了确定是否关注不同的行动方面 (目标,动力学,身份) 改变网络交互.
- 识别特定的大脑区域和网络,其连接受到行动观察期间注意力集中的影响.
主要方法:
- 功能磁共振成像 (fMRI) 用于测量大脑反应.
- 参与者参加了短片动作动画中的行动目标,动力学或身份.
- 功能连接分析确定了AON中的任务调制连接.
主要成果:
- 在与目标相比,参与行动动力学时,右PSTS和右IFC之间的连接以及在扩展的STS (STS+) 中得到加强.
- 单变量分析显示了最小的调制,除了右IFC.
- 注意调制主要涉及前端对等控制和默认模式网络中的部分.
结论:
- 从执行系统 (如IFC) 到pSTS的自上而下的反影响了行动观察.
- 右侧化双通道模型可能是动作观测的基础,特别是当专注于全身动力学时.
- 注意焦点在动作观察网络中动态重塑功能连接.
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