在中风后,胰岛的结构完整性和情感面部识别性能
Kai Klepzig1, Martin Domin1, Julia Wendt2
1Functional Imaging Unit, Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Walther-Rathenau-Str.46, 17475 Greifswald, Germany.
Brain communications
|June 9, 2023
概括
损伤的左前岛损害了面部情绪识别,特别是对恐惧和愤怒的表情. 这项研究将特定的大脑连接变化与中风后的这些缺陷联系起来.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 认知心理学 认知心理学
背景情况:
- 人类岛屿在面部情绪识别中的作用受到争议,特别是在中风引起的损伤方面.
- 以前的研究还没有量化白物质通道的结构连接性,这些通道将岛屿与情绪识别缺陷联系起来.
研究的目的:
- 调查中风患者中病变位置在胰岛和面部情绪识别缺陷之间的关系.
- 通过使用曲谱学来量化连接胰岛与其他大脑区域的路径的结构白质完整性.
- 探索岛屿结构连接和识别特定面部情绪的障碍之间的关联.
主要方法:
- 一项涉及29名慢性中风患者和14名健康对照者的病例控制研究.
- 基于voxel的病变-症状映射来分析病变位置及其影响.
- 基于轨道图的分数异构,以评估岛屿连接的结构白物质完整性.
主要成果:
- 脑卒中患者表现出对恐惧,愤怒和快乐的面部表情的识别受损.
- 围绕左前半岛的病变与面部情绪识别受损有显著的关联.
- 左侧岛屿白物质区域的结构完整性下降与识别愤怒和恐惧表达的缺陷相关.
结论:
- 左前面岛屿在识别特定的面部情绪方面发挥着至关重要的作用.
- 岛屿白物质连接的结构完整性对于准确的面部情绪识别至关重要.
- 结合病变分析和连接量化的多模式调查提高了对中风后情绪识别障碍的理解.
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