Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
Interdisciplinary Program in Cognitive Science, Seoul National University, Seoul, Republic of Korea.
Sci Rep. 2022 Sep 10;12(1):15283. doi: 10.1038/s41598-022-19514-9.
Motor learning is often hindered or facilitated by visual information from one's body and its movement. However, it is unclear whether visual representation of the body itself facilitates motor learning. Thus, we tested the effects of virtual body-representation on motor learning through a virtual reality rotary pursuit task. In the task, visual feedback on participants' movements was identical, but virtual body-representation differed by dividing the experimental conditions into three conditions: non-avatar, non-hand avatar, and hand-shaped avatar. We measured the differences in the rate of motor learning, body-ownership, and sense of agency in the three conditions. Although there were no differences in body-ownership and sense of agency between the conditions, the hand-shaped avatar condition was significantly superior to the other conditions in the rate of learning. These findings suggest that visually recognizing one's body shape facilitates motor learning.
运动学习通常会受到来自自身及其运动的视觉信息的阻碍或促进。然而，目前尚不清楚身体本身的视觉表现是否会促进运动学习。因此，我们通过虚拟现实旋转追踪任务来测试虚拟身体表现对运动学习的影响。在任务中，参与者的运动视觉反馈是相同的，但虚拟身体表现因将实验条件分为三种条件而有所不同：无化身、无手化身和手形化身。我们测量了在这三种条件下运动学习的速度、身体所有权和代理感的差异。尽管在身体所有权和代理感方面各条件之间没有差异，但手形化身条件在学习速度上明显优于其他条件。这些发现表明，视觉上识别自己的身体形状有助于运动学习。
