Visual Feedback Gain Affects Cognitive Motor Function During Constant Grip Strength Control: A Functional Near-Infrared Spectroscopy Study

IF 5.2 2区 医学 Q2 ENGINEERING, BIOMEDICAL
Yehong Zhang;Yinping Wei;Mengsheng Xia;Shiyang Lv;Wu Ren;Zongya Zhao;Ting Pang;Xuezhi Zhou;Yi Yu;Zhixian Gao
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引用次数: 0

Abstract

Visual feedback gain critically affects feedback quality and fine motor control, yet its neural basis related to cognitive motor control remains unclear. Nineteen healthy right-handed participants performed constant grip tracking at 20% of maximum voluntary contraction under low, medium, and high visual feedback gains. Functional near-infrared spectroscopy recorded hemodynamic responses from six regions of interest (ROIs): left/right prefrontal cortex (LPFC/RPFC), dorsolateral prefrontal cortex (DLPFC), left supplementary motor and premotor area (LSMA&PMA), left primary motor cortex (LM1), and left primary somatosensory cortex (LS1). Simultaneous grip force was collected. Under the medium gain level, the mean absolute error (MAE) was significantly lower than under both low ( ${P}\lt 0.001$ ) and high ( ${P}={0}.{036}$ ) gain levels. Compared to the low gain level, the medium gain level showed higher HbO peaks in the RPFC ( ${P}={0}.{022}$ ), DLPFC ( ${P}={0}.{011}$ ), LSMA&PMA ( ${P}={0}.{041}$ ) and LS1 ( ${P}={0}.{032}$ ), greater phase-locking value between ROIs within the LPFC-RPFC ( ${P}\lt 0.001$ ), RPFC-DLPFC ( ${P}={0}.{047}$ ) and DLPFC-LS1 ( ${P}={0}.{030}$ ), along with enhanced global coherence and higher clustering coefficients. Moreover, under the medium gain level, motor performance was significantly positively correlated with cortical activation across all six ROIs ( ${P}\lt 0.05$ ). These findings suggest medium visual feedback gain optimally balances spatial information, enabling efficient neural resource allocation and enhanced motor performance. This study offers novel insights into the neural mechanisms of visually guided precision grip.
视觉反馈增益影响恒定握力控制期间的认知运动功能:功能近红外光谱研究。
视觉反馈增益对反馈质量和精细运动控制有重要影响,但其与认知运动控制相关的神经基础尚不清楚。19名健康的右撇子参与者在低、中、高视觉反馈增益的情况下,以最大自愿收缩的20%进行持续的握力跟踪。功能近红外光谱记录了6个感兴趣区域(roi)的血流动力学反应:左/右前额叶皮质(LPFC/RPFC)、背外侧前额叶皮质(DLPFC)、左侧辅助运动和前运动区(LSMA&PMA)、左侧初级运动皮质(LM1)和左侧初级躯体感觉皮质(LS1)。同时收集握力。在中增益水平下,平均绝对误差(MAE)显著低于低(P
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来源期刊
CiteScore
8.60
自引率
8.20%
发文量
479
审稿时长
6-12 weeks
期刊介绍: Rehabilitative and neural aspects of biomedical engineering, including functional electrical stimulation, acoustic dynamics, human performance measurement and analysis, nerve stimulation, electromyography, motor control and stimulation; and hardware and software applications for rehabilitation engineering and assistive devices.
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