社会隔离和丰富环境对多感官大脑功能和网络隔离的不同影响
Taeyi You1,2,3,4, Taekwan Lee5,6, Geun Ho Im4
1Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea.
Nature communications
|July 31, 2025
概括
早期的生活环境对大脑网络产生重大影响. 社会隔离破坏了网络隔离,而丰富的环境增强了感官处理和保持大脑网络组织.
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
- 脑部成像 脑部成像
背景情况:
- 环境因素对大脑发育和适应性策略至关重要.
- 感官处理网络是生存和成长的基础.
- 早期的生活经历可以塑造长期的大脑功能.
研究的目的:
- 为了调查不同的早期生活环境 (社会隔离与丰富) 如何改变大脑网络功能.
- 阐明环境操纵对特定感官的功能反应和网络的影响.
- 了解环境线索对大脑发育和组织的影响.
主要方法:
- 暴露雄性小鼠在4至11周年龄的社会隔离或丰富环境中.
- 使用感官刺激引起的血液氧气水平依赖 (BOLD) 功能磁共振成像 (fMRI).
- 使用静止状态fMRI来评估功能网络连接和隔离.
主要成果:
- 社会隔离导致大脑网络的隔离减少,特别影响嗅觉和视觉网络.
- 丰富的环境保持了网络隔离,并增强了高级感官和视觉皮质功能.
- 与孤立的小鼠相比,在丰富的环境中的小鼠表现出更好的感觉运动功能反应.
结论:
- 早期的生活环境条件显著影响大脑网络结构和功能.
- 环境的丰富促进了增强的感官处理和网络组织,而隔离导致干扰.
- 研究结果强调了身体和社会感官线索在大脑发育中的关键作用,为精神疾病提供了潜在的治疗见解.
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