腹侧前额皮层激活的年龄相关变化与两年后的日常亲社会行为有关
Seh-Joo Kwon1, Jorien van Hoorn2, Kristen A Lindquist3
1Department of Psychology, Rutgers University, Newark, United States.
Developmental cognitive neuroscience
|May 30, 2024
概括
青少年的亲社会行为,如捐赠时间,在青春期下降. 腹侧前额皮质 (vlPFC) 中的大脑活动下降,预测未来的社区参与.
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
- 社会学 社会学 社会学
背景情况:
- 了解青少年的亲社会行为至关重要,因为他们成为社会贡献者.
- 有限的知识存在于青少年基于社区的亲社会行动的发展轨迹,如慈善时间捐赠.
研究的目的:
- 调查青春期亲社会行为的变化背后的神经发育机制.
- 为了检查大脑激活和现实生活中的亲社会行为之间的纵向关系.
主要方法:
- 一项纵向功能磁共振成像 (fMRI) 研究,涉及172名青少年 (在第1波时平均年龄为12.8岁).
- 参与者完成了为期三年的年度亲社会任务,涉及决定向慈善机构捐赠时间.
- 两年后收集的日常日记评估了现实生活中的亲社会行为.
主要成果:
- 青少年从青春期初到中期向慈善机构捐赠的时间减少.
- 纵向fMRI显示,在亲社会决策过程中,腹侧前额皮层 (vlPFC) 激活率下降,U形前额皮层激活率逆转.
- 两年后,减少vlPFC激活的下降与增加的日常亲社会行为相关.
结论:
- 亲社会行为和相关的神经活动在青春期经历了显著的发育变化.
- 青春期的vlPFC功能对青春期后期的社区参与有持久的影响.
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