时间切除术证据证明杏仁体在早期情感面部和身体处理中的作用
Eleanor Moses1, Jenna Scambler2, Jessica Taubert1
1School of Psychology, The University of Queensland, St Lucia, Queensland 4067, Australia.
eNeuro
|January 31, 2025
概括
单侧叶和杏仁核切除 (TLR) 损害了早期的视觉情感处理. 右桃体对于感知恐惧的面孔至关重要,而这两个半球对于处理情感身体至关重要.
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
- 精神病学是一个精神病学.
背景情况:
- 杏仁体在视觉情绪处理中的作用已经确立,但其时间动态和横向化仍然存在争议.
- 了解像杏仁体这样的皮质下结构如何随着时间的推移处理情绪,对于诊断和治疗情绪感知障碍至关重要.
研究的目的:
- 研究单边叶和杏仁核切除 (TLR) 对情绪刺激的时间处理的影响.
- 确定左桃体和右桃体对感受情感面孔和身体的具体贡献.
主要方法:
- 脑电图 (EEG) 用于测量TLR和健康对照患者的脑活动.
- 质量单变量分析比较了不同患者群体 (左TLR,右TLR,对照组) 恐惧与中性面部和身体的脑反应.
主要成果:
- 与对照组相比,TLR影响了早期的视觉情绪处理.
- 对照组对恐惧面孔 (140-170ms) 的反应加剧,在左侧的TLR组中存在,但在右侧的TLR组中不存在.
- 在对照组中,恐惧的身体刺激引起了不同的大脑活动 (90-120毫秒),这一效应在两组TLR中都被废除了.
结论:
- 杏仁体对于早期的感知区分情绪和中性刺激至关重要.
- 右侧的中间时结构,包括杏仁体,在感知情感面孔方面发挥着独特的作用.
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