HUMAN CORTICAL ACTIVITY RELATED TO UNILATERAL MOVEMENTS - A HIGH-RESOLUTION EEG STUDY

IN the present study a modern high resolution electroencephalography ( EEG) technique was used to investigate the dynamic functional topograp hy of human cortical activity related to simple unilateral internally triggered finger movements. The sensorimotor area (M1-S1) contralatera l to the movement as well as the supplementary motor area (SMA) and to a lesser extent the ipsilateral M1-S1 were active during the preparat ion and execution of these movements. These findings suggest that both hemispheres may cooperate in both planning and production of simple u nilateral volitional acts.