运动皮层中神经活动的时空空间结构在达到运动过程中
Ryan A Canfield1, Tomohiro Ouchi2, Hao Fang2
1University of Washington, Bioengineering, Seattle, 98115, USA.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
大脑-计算机接口 (BCI) 为运动绘制神经活动图. 这项研究揭示了运动表征是复杂的,分布在前额叶皮质,告知未来的BCI植入策略.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 生物医学工程 生物医学工程
背景情况:
- 皮层内脑-计算机接口 (BCI) 将神经活动转化为行动.
- 目前的BCI技术针对广泛的皮质区域,但未来的植入物需要精确地针对特定的神经群体.
- 在前部运动皮层中,运动表征的详细结构尚未得到充分理解.
研究的目的:
- 调查前额运动皮层的广泛区域内的运动表征和神经群体动态的变化.
- 描述与运动控制相关的神经活动模式的时空复杂性.
主要方法:
- 使用高密度的层状微电极阵列,在子中同时进行多神经元记录.
- 在三个空间维度上映神经元活动,并将其与运动参数相关联.
- 进行了目标解码分析,以评估任务信息分布和神经群体动态.
主要成果:
- 任务信息在皮质表面和深度中异质分布.
- 神经群体动态 (时间协调) 也有所变化,任务信息预测了动态的相似性.
- 表现出最相似的动态的神经群体包括具有高任务信息的神经元,无论它们的空间位置如何.
结论:
- 额叶皮层中的运动表现是时空复杂的,涉及空间分布的神经群体,用于学习好的运动.
- 了解这种复杂性对于设计和优化未来的BCI植入物以提高性能至关重要.
- 这些发现为指导下一代BCI技术的开发提供了关键的见解.
相关概念视频
01:14Motor and Sensory Areas of the Cortex
6.8K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
6.8K
01:23Somatosensory, Motor, and Association Cortex
2.2K
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...
2.2K