Oscillatory brain activity during a motor task

Open Access
Publisher Website
Google Scholar
Abstract
CHANGES in spectral power in neuromagnetic fields associated with a manual task requiring a high level of sensorimotor integration (SMI) were investigated by analysing spontaneous, non-invasively recorded activity during motor preparation (WAIT), task performance (SMI), and control (REST) conditions in four healthy, right-handed human subjects. Neuromagnetic fields were recorded over the left sensorimotor cortex using a 37-channel instrument. In all subjects, a prominent narrow-band motor preparation rhythm centred near 19 Hz was consistently observed during the WAIT state. During SMI, mean relative increases in 26–30 Hz activity appeared in two of the subjects, paralleling gamma band enhancement recently observed during SMI in monkeys.

This publication has 0 references indexed in Scilit: