在没有中间前额叶皮层的情况下,对行为的认知控制和海马的信息处理
Eun Hye Park1,2, Kally C O'Reilly Sparks1, Griffin Grubbs1
1Center for Neural Science, New York University, New York, United States.
eLife
|June 23, 2025
概括
在老鼠中,中部前额叶皮层 (mPFC) 病变在积极避开位置的任务中没有损害认知控制. 这表明认知控制的基本计算可以独立于mPFC发生.
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
- 行为神经科学 行为神经科学
背景情况:
- 认知控制涉及管理竞争信息,中枢前额叶皮质 (mPFC) 传统上被认为是中心的.
- 动物研究推断mPFC在认知控制中的作用来自mPFC损伤后的任务执行缺陷.
- 之前的工作在动物中建立了一个活跃的避开位置任务,证明了同时对行为和海马区位置细胞活动进行认知控制.
研究的目的:
- 为了研究中部前额叶皮层 (mPFC) 病变是否会损害大鼠在积极避开位置的任务中的表现.
- 测试关于mPFC在认知控制中的作用的"中央计算"与"本地计算"假设.
主要方法:
- 鼠经历了mPFC的伊波丁酸病变,影响了带膜,前膜和下膜皮层.
- 评估了主动避开地点任务的表现,包括初始学习,长期记忆和适应重新安置的冲击区域.
- 分析了损伤后的代谢活动协调和海马位细胞表征.
主要成果:
- mPFC病变并没有影响初始冲击回避学习或长期记忆.
- 当冲击位置被重新定位时,病变会影响避开行为,这表明适应性认知控制的缺陷.
- 在mPFC病变后,与任务相关的和无关的位置之间的海马位置细胞表示的交替性保持不变.
结论:
- 研究结果支持"局部计算"假设,表明认知控制计算可以独立于mPFC发生.
- 对于所有认知控制方面来说,mPFC可能不是必不可少的,特别是海马体的空间信息处理.
- 替代的大脑网络可能支持以前仅归因于mPFC的认知控制功能.
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