动态的皮质状活动会影响单性草原雌性的社会联系
Elizabeth A Amadei1,2,3, Zachary V Johnson1,4,5, Yong Jun Kwon1,3,4
1Silvio O. Conte Center for Oxytocin and Social Cognition, Center for Translational Social Neuroscience, Emory University, Atlanta, Georgia 30322, USA.
Nature
|June 1, 2017
概括
伴侣关系迅速加强大脑中的神经连接
科学领域:
- 神经科学
- 行为生物学
- 社会科学
背景情况:
- 成人伴侣关系涉及到个人对伴侣的看法和价值观的重大变化.
- 伴侣激活大脑的奖励系统, 但神经机制尚未完全理解.
研究的目的:
- 在社会纽带形成过程中调查伴侣奖励和附属行为的神经机制.
- 确定特定的脑电路参与增强关联行为.
主要方法:
- 使用草原模型 (Microtus ochrogaster) 来研究社会联系.
- 测量了中间前额叶皮层和核之间的功能连接.
- 在社会背景下操纵电路活动以评估其因果作用.
主要成果:
- 发现中间前额叶皮层-核的动态调节增强了女性的附属行为.
- 电路连接强度的个体差异可以预测合作伙伴的速度.
- 这种电路的节奏激活会加速伴侣偏好, 即使没有交配.
结论:
- 社交互动动态地招募大脑的奖励系统来驱动关联行为.
- 中间前额叶皮层对核的循环在加速社会联系中起着因果作用.
- 这项研究提供了在社会纽带形成过程中的皮质状活动的动态视图.
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