Abstract
We examined movement related cerebral fields by using the cross-correlogram method to compare the accelerometer and surface electromyography (EMG). The EMG was attached on the thenar muscles of the right hand and the accelerometer was attached on the right thumb between the interphalangeal joint and the metatarsophalangeal joint. Repeated self-paced movements of alternating the thumb flexion and extension for 90 seconds were recorded in magnetoencephalography (MEG). Cross-correlogram of MEG-accelerometer and MEG-EMG were analyzed to determine the signal source, by using the Equivalent current dipole (ECD) method and the Minimum Norm Estimates (MNE) method. We obtained the clear cross-correlogram of MEG-accelerometer and MEG-EMG. The results of the measurement with the accelerometer and the EMG were approximately equal on ECD and MNE. In this study, we concluded that the movement related cerebral fields obtained from the cross-correlogram method using the accelerometer was useful.
