抄録
We performed functional magnetic resonance imaging (fMRI) on seven normal, right-handed volunteers while they viewed video clips of a static or moving hand, with fingers pointed toward the subject. Brain areas that showed significantly higher activation while viewing dynamic hands vs. static hands were the occipito-temporal area (BA19) contralateral to the observed hand, and the right ventral premotor area (BA6) and superior temporal sulcus (STS; BA22) regardless of the hand. Observation of the left hand significantly activated the right dorsal premotor area whether it was moving or static, while observation of the right hand significantly activated the somatosensory cortex when it was moving compared with when it was static. Therefore, perception of another person's moving hand was associated with the form processing of hand, biological motion analysis of hand movement, and inhibition of the tendency to imitate another person's moving hand.
