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序列学习的记忆巩固和在清醒期间的动态适应

Yiyu Wang¹, Angelina T Huynh¹, Shancheng Bao¹

¹Program of Motor Neuroscience, Department of Kinesiology & Sport Management, Texas A&M University, College Station, TX 77843, United States.

Cerebral cortex (New York, N.Y. : 1991)

|January 8, 2024

概括

运动记忆通过不同的过程在清醒期间巩固. 序列学习依赖于初级运动皮质 (M1),而动态适应依赖于感官皮质 (S1) 进行巩固.

科学领域:

神经科学是一个神经科学.
发动机控制器的控制器
认知科学认知科学

背景情况:

运动学习包括获得新的动作序列和调整现有的动作序列.
新形成的运动记忆是不稳定的,在清醒时经历巩固.
对于序列学习的整合与动态适应的独立性和神经基础仍然不清楚.

研究的目的:

调查序列学习和动态适应的运动记忆巩固过程是否独立.
识别参与巩固序列学习和动态适应记忆的不同神经区域.
为了阐明在清醒期间不稳定运动记忆的依赖时间的巩固.

主要方法:

参与者学习了新的运动序列,并适应了新的运动条件.
干扰任务被用来评估随时间推移的记忆稳定性.
模式式的横性磁性刺激 (TMS) 应用于原发动机 (M1) 和感觉 (S1) 皮层,以探测它们在巩固中的作用.

主要成果:

来自序列学习和动态适应的不稳定运动记忆通过在清醒期间的时间依赖巩固来稳定.
序列学习和动态适应记忆在连续训练时不会相互干扰,这表明不同的巩固机制.
序列学习记忆的巩固受到M1破坏而不是S1的干扰,而动态适应巩固则依赖S1而不是M1.

结论:

动力记忆的巩固以进行序列学习和动态适应是清醒期间发生的独立过程.
序列学习记忆的巩固是由主要运动皮质 (M1) 支的.
动态适应记忆巩固依赖于感官皮质 (S1),为不同类型的运动学习揭示不同的神经基质.

关键词:

动态适应动态适应记忆的整合记忆的整合感觉运动皮层 (sensorimotor cortex) 是一个感觉运动皮层.顺序学习学习是指学习的顺序.清醒清醒清醒清醒

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