中国神经再生研究(英文版)

中国神经再生研究(英文版) ›› 2021, Vol. 16 ›› Issue (12): 2431-2437.doi: 10.4103/1673-5374.313058

• 原著:退行性病与再生 • 上一篇    下一篇

运动想象任务中使用视频演示可增强大脑皮质的生动性和活动性

  

  • 出版日期:2021-12-15 发布日期:2021-05-15

A method for using video presentation to increase the vividness and activity of cortical regions during motor imagery tasks

Kengo Fujiwara1, 2, Masatomo Shibata1, Yoshinaga Awano1, Koji Shibayama1, Naoki Iso3, Moemi Matsuo2, Akira Nakashima2, Takefumi Moriuchi2, Wataru Mitsunaga2, Toshio Higashi2, *   

  1. 1Department of Clinical Services, Nagasaki Rehabilitation Hospital, Nagasaki, Japan; 2Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; 3Department of Rehabilitation, Faculty of Health Sciences, Tokyo Kasei University, Tokyo, Japan
  • Online:2021-12-15 Published:2021-05-15
  • Contact: Toshio Higashi, PhD, higashi-t@nagasaki-u.ac.jp.

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摘要：

有研究显示，使用非瘫痪上肢的横向倒置视频来改善所呈现的运动想象（MI）的生动性的心理练习（MP）可有效改善瘫痪上肢的功能。但是，尚无研究使用反视频演示和神经生理指标评估参与MI任务执行过程的大脑皮质区域的活动。为研究近红外光谱3种条件下MI生动性和大脑皮质血流动力学变化：仅MI，无反向视频演示（仅MI）；MI+观察另一个人的手动作的反向视频演示（AO + MI（他人手））；以及MI+观察参与者自己的手（AO + MI（自己手））的反向视频演示。试验共纳入66名健康右利手成人（41名男性和25名女性；平均年龄：26.3±4.3岁）。MI任务包括每秒用一只手的筷子将1 cm×1 cm的块从一块板转移到另一块板。视觉模拟量表（VAS）评估结果显示，AO + MI（自己手）组的MI生动性明显高于仅MI组和AO + MI（他人手）组。MI的生动性以及与运动处理相关的某些大脑区域中的感兴趣区域（ROI）揭示了条件主效应。数据表明，人本身手反向视频演示可增强MI的生动度，并增加MI期间运动相关皮层区域的活动。

https://orcid.org/0000-0002-4562-068X (Toshio Higashi)

Abstract: In recent years, mental practice (MP) using laterally inverted video of a subject’s non-paralyzed upper limb to improve the vividness of presented motor imagery (MI) has been shown to be effective for improving the function of a paralyzed upper limb. However, no studies have yet assessed the activity of cortical regions engaged during MI task performance using inverse video presentations and neurophysiological indicators. This study sought to investigate changes in MI vividness and hemodynamic changes in the cerebral cortex during MI performance under the following three conditions in near-infrared spectroscopy: MI-only without inverse video presentation (MI-only), MI with action observation (AO) of an inverse video presentation of another person’s hand (AO + MI (other hand)), and MI with AO of an inverse video presentation of a participant’s own hand (AO + MI (own hand)). Participants included 66 healthy right-handed adults (41 men and 25 women; mean age: 26.3 ± 4.3 years). There were 23 patients in the MI-only group (mean age: 26.4 ± 4.1 years), 20 in the AO + MI (other hand) group (mean age: 25.9 ± 5.0 years), and 23 in the AO + MI (own hand) group (mean age: 26.9 ± 4.1 years). The MI task involved transferring 1 cm × 1 cm blocks from one plate to another, once per second, using chopsticks held in the non-dominant hand. Based on a visual analog scale (VAS), MI vividness was significantly higher in the AO + MI (own hand) group than in the MI-only group and the AO + MI (other hand) group. A main effect of condition was revealed in terms of MI vividness, as well as regions of interest (ROIs) in certain brain areas associated with motor processing. The data suggest that inverse video presentation of a person’s own hand enhances the MI vividness and increases the activity of motor-related cortical areas during MI. This study was approved by the Institutional Ethics Committee of Nagasaki University Graduate School of Biomedical and Health Sciences (approval No. 18121303) on January 18, 2019.

Key words: action observation, cortical activity, inverse video presentation, mental practice, motor imagery, motor palsy, paralysis, recovery, rehabilitation, stroke

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