在面部表情处理过程中,alexithymia调节了情感概念的激活
Linwei Yu1, Weihan Wang1, Zhiwei Li1
1Department of Psychology, Ningbo University, Ningbo 315211, China.
Cerebral cortex (New York, N.Y. : 1991)
|March 11, 2024
概括
患有alexithymia的人很难处理情绪,特别是面部表情. 这项研究表明,alexithymia损害了情感概念的激活,影响了面部情感感知.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 情感科学是一种情感科学.
背景情况:
- 亚历克西西米亚是由情绪信息处理中的困难来定义的.
- 亚历克西西米亚情绪处理缺陷背后的确切机制尚不清楚.
- 了解这些缺陷对于解决与alexithymia相关的情感障碍至关重要.
研究的目的:
- 研究alexithymia患者的情绪处理缺陷背后的神经机制.
- 检查alexithymia如何影响与上下文信息相关的面部情绪的感知.
- 探索自发情感概念激活在这些缺陷中的潜在作用.
主要方法:
- 利用多伦多的alexithymia规模-20招募大学生高和低的alexithymia.
- 使用事件相关潜能 (ERP) 在情感感知任务期间记录大脑活动.
- 基于ERP数据,使用机器学习分析来区分高和低的alexithymia组.
主要成果:
- 较高的alexithymia组在处理面部表情时表现出较慢的响应时间,与较低的alexithymia组相比.
- 与事件相关的潜在数据显示,在不一致的情绪刺激期间,高亚历克西西米亚组的N400幅度更为负.
- 机器学习模型成功地区分了高和低的alexithymia组,在不一致的条件下使用N400振幅.
结论:
- 研究结果表明,在高亚历克西西米亚的个体中,面部情感感知受受损.
- 难以自发激活情感概念的困难可能是这些感知缺陷的基础.
- 这些结果对情感科学和alexithymia的临床干预有重大影响.
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