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城市生活和城市成长会影响人类神经系统的社会压力处理
Florian Lederbogen1, Peter Kirsch, Leila Haddad
1Central Institute of Mental Health, University of Heidelberg/Medical Faculty Mannheim, 68159 Mannheim, Germany.
Nature
|June 24, 2011
概括
城市生活通过改变大脑对社会压力的反应,影响心理健康. 当前的城市生活增加了杏仁体的活动,而城市的成长影响了前带皮质,揭示了不同的神经机制.
科学领域:
- 神经科学是一个神经科学.
- 环境心理学 环境心理学
- 城市卫生 城市卫生
背景情况:
- 全球超过一半的人口居住在城市地区,需要健康的城市环境.
- 城市生活与情绪,焦虑和精神分裂症疾病的患病率增加有关.
- 城市化对心理健康的影响背后的神经机制在很大程度上是未知的.
研究的目的:
- 研究当前城市生活与城市成长对社会压力处理的独特神经影响.
- 确定受城市环境因素影响的特定大脑区域和机制.
主要方法:
- 功能磁共振成像 (fMRI) 用于三个独立的实验.
- 测量了参与者对社会评估压力的反应.
- 对照实验评估了没有压力的认知处理,以确保特异性.
主要成果:
- 当前的城市生活与桃体活动的增加有关.
- 城市的成长特别影响了危险的前带带皮质,这是一个对压力调节至关重要的区域.
- 这些影响是区域特定的,对其他大脑结构或非压力认知任务没有影响.
结论:
- 城市化对神经处理社会评估压力的神经处理产生了分离的效应.
- 特定的大脑区域 (杏仁体,前环状皮质) 在整个生命周期中表现出不同的脆弱性.
- 这项研究将城市环境与社会压力神经机制联系起来,并突出了社会神经科学中的实验方法.
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