动机控制是由一个带带前额网络实施的
Clémence Gandaux1, Jérôme Sallet1, Céline Amiez1
1INSERM, Stem Cell and Brain Research Institute U 1208, Université Lyon 1, Bron 69500, France.
Current biology : CB
|October 30, 2025
概括
该研究表明,中皮质 (MCC) 和背侧前额皮质 (dlPFC) 之间的直接连接主要控制长期的行为参与,而不是快速适应策略.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 灵长类动物的行为
背景情况:
- 执行功能依赖于中皮质 (MCC) 和背侧前额皮质 (dlPFC) 之间的相互作用.
- 无论是短期还是长期,MCC-dlPFC途径在适应中的作用仍然不清楚,有关直接与间接连接的问题仍然存在.
- 了解前额叶皮层网络对于辨别自适应性认知功能机制至关重要.
研究的目的:
- 阐明MCC和dlPFC之间的直接神经元连接对自愿行为的具体贡献.
- 区分MCC-dlPFC途径在快速试验-试验适应与持续的行为参与中的作用.
主要方法:
- 在灵长类动物 () 中利用了特定途径的DREADDs (仅由设计药物激活的设计受体).
- 结合行为分析,神经成像和免疫组织学来研究MCC-dlPFC通路的功能.
- 从MCC到dlPFC激活反预测,观察对行为的影响.
主要成果:
- 由DREADD介导的MCC对dlPFC反预测的激活,增加了参与搜索任务的参与度.
- 这种激活没有影响动物的试验到试验的适应策略,表明对快速适应没有影响.
- 神经动力学分析支持MCC-dlPFC相互作用,但该途径的特定作用通过DREADD操纵来澄清.
结论:
- 直接的MCC-dlPFC通路对于暂时延长的行为动机控制至关重要.
- 这一途径并不是主要涉及到快速的,试验对试验的适应性调整.
- 这些发现澄清了前额叶皮层相互作用在适应性认知中的独特作用.
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