Neurophysiology, Basic and ClinicalHuman cortical activity related to unilateral movements. A high resolution EEG studyUrbano, Antonio1,2; Babiloni, C1; Onorati, P1; Babiloni, F1Author Information 1Institute of Human Physiology, Division of High Resolution EEG (CIMS), University of Rome ‘La Sapienza’, P.le A. Moro 5, 00185 Rome, Italy 2Corresponding Author: Antonio Urbano ACKNOWLEDGEMENTS: We thank Drs Carducci, Fattorini, Ambrosini and Artero for their help. The research was supported by a MURST grant 60% (Atemeo,1994). Received 28 August 1996; accepted 30 August 1996 NeuroReport: December 20, 1996 - Volume 8 - Issue 1 - p 203-206 Buy Abstract IN the present study a modern high resolution electroencephalography (EEG) technique was used to investigate the dynamic functional topography of human cortical activity related to simple unilateral internally triggered finger movements. The sensorimotor area (M1- S1) contralateral to the movement as well as the supplementary motor area (SMA) and to a lesser extent the ipsilateral M1-S1 were active during the preparation and execution of these movements. These findings suggest that both hemispheres may cooperate in both planning and production of simple unilateral volitional acts. © Lippincott-Raven Publishers.