在左对右语义痴呆症中,半球对整体感受和情绪识别的贡献
Jessica L Hazelton1, Emma Devenney2, Rebekah Ahmed3
1The University of Sydney, School of Psychology, Sydney, NSW, Australia; The University of Sydney, Brain and Mind Centre, Sydney, NSW, Australia.
Neuropsychologia
|June 22, 2023
概括
右侧语义性痴呆症会影响整体感知 (身体意识) 和情绪识别. 这表明内部监控缺陷导致情绪缺陷,与右半球大脑结构有关.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 神经学 神经学
背景情况:
- 互感 (对身体内部线索的感知) 和情绪识别半球贡献不清楚.
- 语义性痴呆症 (SD) 患者左侧或右侧主导性缩表现出情绪识别缺陷,但对整体感应的理解较少.
- 假设右主导SD (右-SD) 由于右前叶缩而表现出较差的整感受和情绪识别.
研究的目的:
- 在语义性痴呆症中研究半球内感知和情感识别的半球差异.
- 为了确定SD中右主导缩是否与整体感知和情绪识别中的较大缺陷有关.
- 探索SD中整体感知和情绪识别的神经相关性.
主要方法:
- 35名参与者 (8名左SD,6名右SD,21名对照组) 进行了心跳检测任务,以进行整接收和外接收控制任务.
- 同时心电图 (ECG) 用于通过将心跳事件与参与者的反应进行比较来评估整体感应的准确性.
- 使用面部影响选择任务评估了情绪识别,基于voxel的形态学分析了神经相关性.
主要成果:
- 与对照组和左侧SD患者相比,右侧SD患者的整体感受明显恶化 (p < 0.001).
- 这两个SD组表现出与对照组相比情绪识别受损,右SD显示出比左SD更大的缺陷 (p = 0.003).
- 损伤的整体感应和右侧SD预测了较差的情绪识别,与右侧脑区域 (岛屿,极,丘脑,海马) 相关.
结论:
- 这项研究提供了第一个证据,证明右侧SD的整体感受受损失.
- 研究结果表明,内部监控的缺陷导致右侧SD的情绪识别受损.
- 确定了一个共享的右半球神经生物学基础,用于整感应和情绪识别.
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