Faculty of Healthcare Sciences, Chiba Prefectural University of Health Sciences, Chiba city, Japan.
Graduate School of Human Health Sciences, Tokyo Metropolitan University, Hachioji, Japan.
J Mot Behav. 2022;54(3):354-362. doi: 10.1080/00222895.2021.1976717. Epub 2021 Sep 13.
This study investigated the functional connectivity during visual-motor illusion and compared it with observation and motor execution using functional near-infrared spectroscopy (fNIRS). Thirty subjects were randomly assigned to: illusion, observation, and motor execution group. Illusion group watched own finger joint movement video image and induced kinesthetic illusion, while the other group only performed observation or motor execution. Continuous brain activity was measured using fNIRS and functional connectivity was analyzed. The illusion group perceived (using 7-point Likert scale) a higher degree of kinesthetic illusion and sense of body ownership than the observation group. Visual-motor illusion was associated with stronger functional connectivity between the left premotor cortex and the left parietal area compared with observation and motor execution only, suggesting that these areas respond to visual-motor illusion.
本研究使用近红外光谱脑功能成像技术（fNIRS），探讨了视觉运动错觉时的功能连接，并将其与观察和运动执行进行了比较。30 名受试者被随机分为：错觉组、观察组和运动执行组。错觉组观看自己手指关节运动的视频图像，诱发运动错觉，而其他两组仅进行观察或运动执行。使用 fNIRS 连续测量脑活动，并分析功能连接。与观察组相比，错觉组（使用 7 分李克特量表）感知到更高程度的运动错觉和身体所有权感。视觉运动错觉与左运动前皮质和左顶叶之间更强的功能连接有关，而与仅观察和运动执行相比，这表明这些区域对视觉运动错觉有反应。
