情感概念的大规模编码在从童年到青春期的个人之间变得越来越相似
M Catalina Camacho1, Ashley N Nielsen2, Dori Balser3
1Division of Biology and Biomedical Sciences, Washington University School of Medicine, St. Louis, MO, USA. camachoc@wustl.edu.
Nature neuroscience
|June 8, 2023
概括
大脑对情感概念的表现在儿童中是稳定的. 情绪的神经模式与年龄相似度增加,在青春期同步以更好地理解社会.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 认知科学 认知科学
背景情况:
- 人类需要共享的情感概念来实现社会功能.
- 情感概念发展,但神经表达的变化是不清楚的.
研究的目的:
- 研究情感概念的神经表征的发育变化.
- 检查从童年到青春期,大脑对情绪活动的变化是如何发生的.
主要方法:
- 功能性磁共振成像 (fMRI) 在823名5至15岁的儿童身上.
- 分析了不同情感概念的不同大脑激活模式.
- 使用无模型分析来比较跨年龄组的神经相似性.
主要成果:
- 情感概念在整个大脑 (皮质,小脑,尾状) 中得到了明显的表现.
- 对情绪的神经激活模式显示,随着发育而变化很小.
- 激活模式变得与年龄较大的孩子相比,年龄较小的孩子之间更相似.
- 增加了默认模式网络活动的相似性,以推断大龄儿童的负面情绪.
结论:
- 情感概念的神经表现在童年中后期稳定.
- 在青春期,与情绪相关的大脑活动模式在个体之间同步.
- 这种同步支持适应性的社会功能.
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