运动和认知序列任务在围膜和前额叶皮层中表现出不同的放缓模式
Hannah Doyle1, Rhys Yewbrey2, Katja Kornysheva2
1Brown University, Providence, RI.
Journal of cognitive neuroscience
|May 12, 2025
概括
大脑中的神经活动坡道在抽象和运动序列之间有所不同. 对于运动序列,在 rostrolateral 前额叶皮层 (RLPFC) 中没有发现放缓,但在下侧顶皮层中观察到.
科学领域:
- 认知神经科学 认知神经科学
- 神经生物学 神经生物学 神经生物学
背景情况:
- 人类的日常生活涉及抽象的序列 (基于规则的,超级秒到分钟的时间表) 和运动序列 (基于运动的,次秒到秒的时间表).
- 之前的研究表明,在抽象序列执行过程中,面向侧面前额皮质 (RLPFC) 中的神经活动升.
- 在前额叶皮层 (pFC) 区域观察到运动序列生成过程中的活动,但目前尚不清楚升级是否也是运动序列的特征.
研究的目的:
- 为了调查在RLPFC中的电机序列生产过程中是否发生了显著的升级活动.
- 要确定加坡是否仅限于抽象序列监控和执行,还是电机序列的特征.
主要方法:
- 在发动机序列生产期间在RLPFC中测试了显著的升级活动.
- 在抽象和运动序列任务之间比较神经活动模式.
主要成果:
- 在电机序列生产过程中,在RLPFC中没有观察到任何显著的升级活动.
- 在运动序列生成过程中,在双边下等体皮层中检测到显著的激增活动.
- 显示动力序列升级活动的区域与在抽象序列任务中观察到的区域不同.
结论:
- 提升活动不是RLPFC中所有序列生产的普遍签名.
- 不同的前额头-双额头电路可能是抽象对运动序列执行的基础.
- 研究结果表明,处理抽象和运动序列的神经机制存在分离.
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