| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In the rubber hand illusion (RHI), individuals perceive a fake hand as their own when the hidden real hand and visible fake hand are synchronously stroked. Several RHI studies have reported that visual manipulation of the embodied fake hand inversely affects the perceptual processing of the observer's own hand. This study examined whether motor manipulation of the fake hand affects the observer's sensorimotor system. This study employed a novel RHI paradigm wherein stroking was interrupted by unexpected movement of the fake hand while measuring electroencephalography (EEG). EEG analyses revealed enhanced neural activation (mu rhythm desynchronization) of the sensorimotor system during observation of the fake hand movement. Moreover, motor activation was greater in the synchronous than in the asynchronous condition. These findings suggest that the movement of an illusory embodied body part is inversely transferred to the sensorimotor system of the observer.
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