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Abstract #1136

Where in human brain is the representation of grasping movements?

Hattori N, Shibasaki H, Wheaton L, Wu T, Matsuhashi M, Hallett M

Although numerous studies have been conducted to clarify the mechanisms of grasping movements, those studies have not directly demonstrated the location where the representation of ggraspingh is stored. In this study, we conducted an event-related fMRI study in which subjects were required to make a judgment as to whether various objects visually presented were graspable by one hand (G-judgment) or not (N-judgment). The results showed that only the left inferior parietal lobule (IPL) was more activated in the G-judgment condition compared with the N-judgment condition. This finding indicates that representations of grasping movements may be stored in the left IPL.