Investigation of neural modulation mechanism in sensorimotor cortex during bimanual movement

2014 Fiscal Year Final Research Report

• Project/Area Number: 25750268
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Developmental mechanisms and the body works
• Research Institution: Niigata University of Health and Welfare
• Principal Investigator: YAMASHIRO Koya 新潟医療福祉大学, 健康科学部, 講師 (20570782)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 両手運動 / 体性感覚 / SEFs

Outline of Final Research Achievements

The present study investigated the effect of differential bimanual movement on the activation of the sensorimotor cortex. We compared somatosensory evoked magnetic fields elicited by stimulation of the right index finger in four different conditions: control, unimanual movement, symmetric bimanual movement and asymmetric bimanual movement. The results revealed that the activity of the temporal and parietal areas corresponding to the primary somatosensory cortex (SI) and the secondary somatosensory cortex (SII) in the symmetric bimanual movement condition was significantly larger than that in other conditions. SI and SII are known to play an important role in sensorimotor integration. Therefore, we suggest that bimanual symmetric movement may easily extract somatosensory information.

Free Research Field

運動生理学