在以奖励为基础的学习行为中,潜在的无指令或面部运动的神经机制
Wan-Ru Li1, Takashi Nakano2, Kohta Mizutani3
1Department of Physiology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake 470-1192, Japan; Department of Neuroscience II, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan; Department of Functional Anatomy & Neuroscience, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
Current biology : CB
|August 3, 2023
概括
在小鼠中加强多巴胺神经元刺激会诱导胡须和鼻子的运动. 这些未受指导的面部运动是由多巴胺D1受体和运动皮层通路不同调节的.
科学领域:
- 神经科学是一个神经科学.
- 行为神经科学 行为神经科学
背景情况:
- 在奖励学习过程中发生了未经指导的面部运动,影响了大脑活动.
- 这些运动与奖励期望和收购有关,但没有明确指示.
研究的目的:
- 为了研究底层的神经机制未受指导的或面部运动.
- 为了区分暗示锁定和多巴胺刺激的或面部运动的调节.
主要方法:
- 在小鼠中,在腹膜区域 (oDAS) 的多巴胺神经元的光遗传刺激.
- 用感官线索和oDAS进行帕夫洛夫式调节.
- 在核中抑制/淘汰多巴胺D1受体.
- 胡须主要运动皮层 (wM1) 的非激活.
- 机器学习分析或面部运动.
主要成果:
- oDAS诱导了面部运动 (胡须,鼻子) 没有目标导向的行为.
- 可以区分cue-locked和oDAS对齐的运动.
- 多巴胺D1受体的抑制影响了ODAS诱导的,但不是暗示锁定的运动.
- wM1 失活取消了这两种运动类型.
- 在wM1中,特定的神经元群体代表着不同的运动类型,它们的刺激复制了运动.
结论:
- 独特的神经通路调节暗示锁定和oDAS诱导的面部运动.
- 偶尔的D1受体依赖和独立的信号汇聚在wM1中来控制这些运动.
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