G. Pfurtscheller et C. Neuper, EVENT-RELATED SYNCHRONIZATION OF MU-RHYTHM IN THE EEG OVER THE CORTICAL HAND AREA IN MAN, Neuroscience letters, 174(1), 1994, pp. 93-96
Spontaneous EEG activity was recorded at 56 electrodes in 3 healthy su
bjects. All subjects displayed event-related desynchronization (ERD) o
f mu rhythms over the cortical hand area during discrete finger moveme
nt. In contrast to this, foot movement resulted in an enhancement or e
vent-related synchronization (ERS) of mu rhythms over the hand area. T
his phasic synchronization of mu waves was circumscribed and found at
electrodes overlying both cortical hand areas. It is speculated, that
this ERS represents a short lasting 'idling state' of hand area neuron
s when other body parts are moved.