奖励回路和社会行为的大脑调节
Ilaria Carta1, Christopher H Chen1, Amanda L Schott1
1Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA.
概括
小脑通过连接到腹膜区域 (VTA) 直接影响奖励回路. 这种途径对于处理奖励和促进小鼠的社会行为至关重要.
科学领域:
- 神经科学
- 行为神经科学
背景情况:
- 小脑在自闭症,精神分裂症和成等非运动性精神障碍中扮演着越来越重要的角色.
- 小脑对这些疾病的贡献的确切神经机制仍然很大程度上是未知的.
研究的目的:
- 调查小脑对奖励处理和社会行为的直接影响.
- 为了阐明神经通路连接小脑和奖励电路.
主要方法:
- 在小鼠中利用光遗传学来激活大脑-VTA投射.
- 使用三室社会交互任务来评估社会偏好和行为.
- 在社会探索期间测量大脑-VTA通路中的神经活动.
主要成果:
- 从小脑到腹膜区域 (VTA) 的直接刺激突出的发现.
- 这些投影的光遗传刺激产生了有益的效果.
- 在社会探索过程中,Cerebello-VTA路径活动增加,对社会偏好至关重要.
结论:
- 小脑在调节奖励回路方面发挥着重要的,以前未知的作用.
- 在控制奖励驱动的行为和社会互动方面,
- 这一发现为了解小脑参与精神疾病开辟了新的途径.
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