Examining the nature of distributed neural contributions to motor preparation and initiation.

检查分布式神经对运动准备和启动的贡献的性质。

• 批准号: RGPIN-2017-04717
• 负责人: Carlsen, Anthony
• 金额: $ 2.04万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=631389
• 关键词: Examining; nature; distributed; neural; contributions

It has long been recognized that certain types of movements are prepared in advance to allow task requirements to be met. For example, movements that require a fast reaction time (RT), or those performed in the absence of feedback can be completed successfully and accurately if the goal of the action is known in advance. Although humans commonly perform these types of movements with ease, much is unknown regarding how these actions are planned and carried out by the central nervous system. It has been suggested that these movements are governed by “motor programs” that can specify the details of the motor plan to be carried out. Although motor programs have often been thought of as a metaphor to describe preparation for movement, several more literal models have been proposed describing how motor programs may be represented in the brain. Cortical cell assemblies, in the form of strengthened connections between motor cortical neurons, have been proposed as a mechanism for motor program representation. While these contemporary models suggest that motor programs are cortically mediated and stored, here we propose to investigate the hypothesis that motor actions are represented in a

人们早就认识到，某些类型的移动是事先准备好的，以便满足任务要求。例如，需要快速反应时间（RT）的动作，或者在没有反馈的情况下执行的动作，如果事先知道动作的目标，就可以成功准确地完成。虽然人类通常可以轻松地完成这些类型的动作，但关于这些动作是如何由中枢神经系统计划和执行的，还有很多未知之处。有人认为，这些运动是由“运动程序”控制的，这些程序可以指定要执行的运动计划的细节。虽然运动程序通常被认为是描述运动准备的隐喻，但已经提出了几个更字面的模型来描述运动程序如何在大脑中表现。皮质细胞组装，在运动皮层神经元之间的加强连接的形式，已被提出作为一种机制的运动程序表示。虽然这些当代模型表明，运动程序是皮层介导和存储，在这里，我们建议调查的假设，运动动作是代表在一个