Neural substrates associated with the acquisition of fine finger force control.

IF 3.3 4区医学 Q3 NEUROSCIENCES

BMC Neuroscience Pub Date : 2025-12-13 DOI:10.1186/s12868-025-00986-0

Aoki Takahashi, Riku Ishizaka, Kodai Minami, Yuki Tanaka, Taisei Miyazaki, Kenta Oguma, Nodoka Shimizume, Tatsunori Watanabe

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引用次数: 0

Abstract

Background: Precise finger force control is essential for performing everyday tasks such as writing, buttoning, and eating. While the neurophysiological basis of cognitive skill learning has been extensively studied, much less is known about the neural mechanisms supporting the acquisition of fine motor skills involving finger force control. This study aimed to investigate changes in cortical oscillatory activity and event-related potentials (ERPs) associated with the acquisition of fine finger force control.

Results: Eighteen right-handed healthy young adults practiced a visual target-matching task using a left-hand pinch grip. Force control performance and electroencephalogram (EEG) recordings were assessed before and after training. Behavioral analyses revealed significant improvements in time to target, velocity to target, mean force error, and force variability, with no changes in reaction time. EEG analysis showed enhanced alpha- and beta-band event-related desynchronization after learning. ERP analysis further revealed a significant reduction in N2 amplitude and a significant increase in P3 amplitude following learning.

Conclusions: These results suggest that learning fine finger force control is accompanied by enhanced visuomotor processing, more efficient stimulus discrimination, and greater attentional allocation. This study provides novel insights into the neurophysiological underpinnings of fine motor skill acquisition.

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与精细手指力控制获得相关的神经基质。

背景：精确的手指力量控制是完成日常任务必不可少的，如写作、按按钮和吃东西。虽然认知技能学习的神经生理基础已被广泛研究，但对包括手指力量控制在内的精细运动技能习得的神经机制知之甚少。本研究旨在探讨与细指力控制习得相关的皮层振荡活动和事件相关电位（ERPs）的变化。结果：18名健康的右撇子年轻人练习了一个用左手捏握的视觉目标匹配任务。训练前后分别评估力控表现和脑电图记录。行为分析显示，在反应时间没有变化的情况下，在到达目标的时间、到达目标的速度、平均力误差和力的可变性方面有了显著的改善。脑电图分析显示学习后α和β波段事件相关的去同步化增强。ERP分析进一步显示学习后N2振幅显著降低，P3振幅显著增加。结论：细指力控制的学习伴随着视觉运动加工的增强、刺激识别的提高和注意分配的提高。这项研究为精细运动技能习得的神经生理学基础提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

BMC Neuroscience 医学-神经科学

CiteScore

3.90

自引率

0.00%

发文量

审稿时长

16 months

期刊介绍： BMC Neuroscience is an open access, peer-reviewed journal that considers articles on all aspects of neuroscience, welcoming studies that provide insight into the molecular, cellular, developmental, genetic and genomic, systems, network, cognitive and behavioral aspects of nervous system function in both health and disease. Both experimental and theoretical studies are within scope, as are studies that describe methodological approaches to monitoring or manipulating nervous system function.