An amygdala-to-hypothalamus circuit for social reward.

An amygdala-to-hypothalamus circuit for social reward.
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杏仁核到下丘脑的社会奖励回路。

DOI:
10.1038/s41593-021-00828-2
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发表时间:
2021-06
影响因子:
25
通讯作者:
Hong W
Hong W
中科院分区:
医学1区
文献类型:
--
作者:
Hu RK;Zuo Y;Ly T;Wang J;Meera P;Wu YE;Hong W

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社会互动和关系往往是有益的,但社会互动驱动积极体验的神经机制仍然知之甚少。在这里,我们开发了一个自动操作性条件反射系统来测量小鼠的社会奖励,并发现成年小鼠的两性显示强大的社会互动的强化。通过细胞类型特异性的操作,我们确定了一个至关重要的作用,GABA能神经元在内侧杏仁核(MeA),促进社会互动的积极强化。此外,MeA GABA能神经元通过投射到内侧视前区(MPOA)来介导社会强化行为,并促进丘脑核中的多巴胺释放。最后,激活这个MeA到MPOA电路可以鲁棒地克服回避行为。总之,这些研究结果建立了MeA作为调节两性社会奖励的关键节点,提供了超越经典的中脑边缘奖励系统的社会奖励调节的新见解。
Social interactions and relationships are often rewarding, but the neural mechanisms through which social interaction drives positive experience remain poorly understood. Here, we develop an automated operant conditioning system to measure social reward in mice and find that adult mice of both sexes display robust reinforcement of social interaction. Through cell-type-specific manipulations, we identify a crucial role for GABAergic neurons in the medial amygdala (MeA) in promoting the positive reinforcement of social interaction. Moreover, MeA GABAergic neurons mediate social reinforcement behavior through their projections to the medial preoptic area (MPOA) and promote dopamine release in the nucleus accumbens. Finally, activation of this MeA-to-MPOA circuit can robustly overcome avoidance behavior. Together, these findings establish the MeA as a key node for regulating social reward in both sexes, providing new insights into the regulation of social reward beyond the classic mesolimbic reward system.
DOI: 10.1038/nn.4593
发表时间: 2017-08
影响因子: 25
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