人体腹腔时皮层功能横向化的个体变化:局部竞争和远程合
Nicholas M Blauch1,2,3, David C Plaut4,2, Raina Vin4,5
1Program in Neural Computation, Carnegie Mellon University.
bioRxiv : the preprint server for biology
|October 28, 2024
概括
腹腔皮 (VTC) 组织揭示了通用的局部相互作用形状面部横向性,而不是局部文字面对竞争. 后叶与社会处理的长距离合也影响了VTC中的面部横向化.
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
- 神经成像是一种神经成像.
背景情况:
- 腹腔皮层 (VTC) 对于高水平视觉至关重要,并表现出功能侧面化.
- 单词感知通常是左侧的,而面部感知是右侧的VTC.
- 驱动面部横向化的确切机制,特别是其右侧偏差,仍在争论中.
研究的目的:
- 调查VTC功能横向化的潜在机制,特别是面部和文字处理.
- 测试涉及地方竞争与远程合在塑造VTC组织中的理论.
- 要区分特定的面对面竞争和更一般的代表性互动.
主要方法:
- 利用了来自内部实验和人类结合体项目 (HCP) 数据集的功能性MRI (fMRI) 数据.
- 单词,面孔,物体,工具和身体的选择性计算的横向性指数 (LI).
- 分析了LIs在不同大脑区域和处理类别之间的相关性.
主要成果:
- 在VTC中,没有证据表明文字和面部选择性之间存在本地竞争.
- 面部和工具选择性LI是反相关的,而面部和身体LI是正相关的,表明通用局部相互作用.
- 在不同的后叶子子区域中,VTC面部横向性与语言LI负相关,与社会处理LI正相关.
结论:
- VTC组织是由一般的本地代表性互动而不是单词和面孔之间的特定本地竞争所塑造的.
- 在VTC中面部横向性受到后叶中与社会处理网络的远程合的影响.
- 向右面的横向化可能来自后叶中社会和语言处理之间的局部竞争.
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