相关实验视频

Updated: Jun 6, 2025

Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury

Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury

Published on: January 20, 2023

运动皮质内传感运动神经元电路的持续适应,有运动相关脑震荡病史

Kara D Hayes¹, Madison E R Khan¹, Kylee R Graham¹

¹Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, ON, Canada.

Experimental brain research

|November 28, 2024

概括

具有体育相关脑震荡 (SRC) 史的个体表现出感觉运动集成的改变,特别是在特定的神经回路中,这可能解释了复杂任务时受伤风险的增加.

科学领域:

神经科学是一个神经科学.
运动医学运动医学
发动机控制器的控制器

背景情况:

运动相关脑震荡 (SRC) 可以导致随后的伤害风险持续增加,即使在临床康复后.
底层的神经机制,特别是感觉运动集成的改变,仍然不清楚.
在SRC之后的补偿性适应只能在苛刻的认知运动条件下显现出来.

研究的目的:

通过使用短延迟关联抑制 (SAI) 来研究SRC后的长期感觉运动集成变化.
为了确定受SRC历史影响的特定传感器电路.
探索这些变化如何在不同的任务复杂性和提示有效性下表现.

主要方法:

使用可控制的脉冲参数跨磁刺激 (cTMS) 来评估特定传感器电路 (PA120和AP30) 中的SAI.
测量了在休息状态下和对有效和无效的感觉运动线索的反应期间的SAI,在有或没有SRC史的个体中.
定量化的SAI是有条件和无条件电机唤起潜力的比率 (MEP).

主要成果:

具有SRC史的个体在AP30SAI中表现出持续的适应,但仅在响应无效的感觉运动线索时.
这种AP30SAI适应在休息状态下或在使用有效线索的简单传感运动任务中没有被观察到.
PA120的SAI反应在所有条件和组中都是相似的,无论SRC历史如何.

结论:

对AP30敏感的传感器电路可以作为长期SRC后续的标记.
这些电路中感觉运动集成的改变可能是高认知运动需求期间受伤易感的基础.
针对这些特定的电路可以提供有关脑震荡恢复和伤害预防策略的见解.

关键词:

有关的抑制抑制.认知 - 运动,横磁性刺激 (TMS)脑震荡是一种脑震荡.发动机控制器发动机控制器传感器-运动器集成.

更多相关视频

A Multi-Modal Approach to Assessing Recovery in Youth Athletes Following Concussion

A Multi-Modal Approach to Assessing Recovery in Youth Athletes Following Concussion

Published on: September 25, 2014

A Neuroscientific Approach to the Examination of Concussions in Student-Athletes

A Neuroscientific Approach to the Examination of Concussions in Student-Athletes

Published on: December 8, 2014

相关概念视频

Somatosensory, Motor, and Association Cortex

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...

Neuroplasticity

Neuroplasticity

Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.