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补充前运动皮层介导学习从感知到运动时间的转移
Itzamná Sánchez-Moncada1, Luis Concha1,2, Hugo Merchant3
1Instituto de Neurobiología, Querétaro 76230, México.
概括
密集的计时技能培训可以增强感知计时和运动计时的可变性. 脑部成像显示,表现出时间技能概括的受试者在补充前运动区域和尾状门活动增加.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 发动机控制器的控制器
背景情况:
- 学习特定的时间技能,比如钢琴,可以改善其他时间行为.
- 时间学习及其概括的基础的神经机制仍然不清楚.
研究的目的:
- 调查学习神经基础,从感知转移到运动时间.
- 识别与改善时间敏度和概括相关的大脑变化.
主要方法:
- 65名参与者接受了密集的间隔歧视培训.
- 功能成像 (fMRI) 用于测量训练前和训练后的大脑活动.
- 在动力计时任务中评估了点击间隔变化.
主要成果:
- 训练改善了表现出学习转移的受试者的感知时间敏度.
- 这种转移在运动任务中减少了点击间隔的变化.
- 在补充前运动区和尾状门中增加了活动,特别是在那些概括了时间技能的受试者中观察到.
结论:
- 皮质 - 基底质回路在将时间能力在不同任务中泛化方面发挥着至关重要的作用.
- 定时技能的获得涉及神经可塑性,可以在感知和运动领域之间转移.
- 观察到学习和概括的个体差异,突出了不同的神经反应.
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