Imitative learning of piano-playing-like movement facilitated by body ownership illusion T Ishii1, S Sugano1, S Nishina2 |
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1School of Creative Science and Engineering, Waseda University, Japan |
| Imitative learning is commonly observed in various motor learning, such as tool use, sports, and musical instrument playing. To perform imitative learning, a learner needs to first solve self-other correspondence problem, then calculate motor commands that appropriately reproduce the observed motion. Human adults and children seem to be somehow able to effectively perform this computationally difficult process, but the underlying mechanism is unclear. In this study, we have found that imitative motor learning of sequencial finger movement similar to piano playing can be facilitated when the learner is under body ownership transfer illusion. We presented a computer-generated animation of a hand performing the movement as the instructor, and induced the illusion by visuo-tactile stimulation using a moving computer-generated cone-shaped object and a vibration motor. We tested two conditions, synchronized and unsynchronized visuo-tactile stimulation, and found that the learning was significantly improved when synchronized stimluation was given. The result suggests existence of a common mechanism share by both perception of body ownership and imitative motor learning. |
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