共同的神经基质的亲社会和育儿行为
Fangmiao Sun1,2, Kayla Y Lim1,2, James Dang1,2
1Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
Nature
|March 4, 2026
概括
在小鼠中,育儿经验增强了成年人的亲社会行为,比如理压力较大的个体. 在中部前视区域 (MPOA) 的共享大脑电路将育儿和亲社会性联系起来,这表明进化的护理系统支持社会纽带.
科学领域:
- 神经科学是一个神经科学.
- 行为生物学 行为生物学
- 进化心理学 进化心理学
背景情况:
- 对于社会凝聚力至关重要的亲社会行为,在物种之间都能观察到.
- 亲社会主义的进化起源与父母的照顾有关,但父母与成年人导向的亲社会主义之间的神经联系尚不清楚.
研究的目的:
- 在小鼠中研究连接育儿行为和成年人导向的亲社会性的神经机制.
- 为了确定参与育儿的大脑区域是否也能调节对成年人的亲社会行为.
主要方法:
- 检查了与不同育儿水平的小鼠的allogrooming (亲社会行为).
- 利用神经通路跟踪和活动依赖标记来识别和操纵中介前视区域 (MPOA) 中的特定神经元组合.
- 在核中测量多巴胺释放.
主要成果:
- 具有较高育儿水平的小鼠对压力较大的成年人表现出更高的亲社会色彩.
- 该MPOA双向规范了对压力较大的同类动物的配合.
- 一个MPOA中部分重叠的神经元组合,由MPOA到VTA通路控制,参与了育儿和allogrooming.
- 核突中的多巴胺释放与这两种行为有关.
- 在育儿期间活跃的MPOA合奏对于成年人养至关重要,反之亦然,对于幼犬养至关重要.
结论:
- 父母的经验塑造了支持成年人亲社会行为的神经回路.
- 在育儿和成人导向的亲社会性之间存在共享的神经基质和通路.
- 为了照顾后代而进化的神经系统可能为成年人更广泛的社会支持网络提供了基础.
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