Abstract

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.

摘要

本研究调查了视觉运动错觉期间的功能连接，并将其与使用功能近红外光谱 (fNIRS) 的观察和运动执行进行了比较。30 名受试者被随机分配到：幻觉组、观察组和运动执行组。幻觉组观看自己的手指关节运动视频图像并诱发动觉幻觉，而另一组仅进行观察或运动执行。使用 fNIRS 测量持续的大脑活动并分析功能连接性。幻觉组比观察组感知到（使用 7 点李克特量表）更高程度的动觉幻觉和身体所有权感。