title: Oscillatory brain activity during a motor task.
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 centered 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.
authors.affiliation: Institute of Experimental Audiology, Münster, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Kristeva-Feige
authors.forename: B
authors.initials: B
authors.lastname: Feige
authors.forename: S
authors.initials: S
authors.lastname: Makeig
authors.forename: B
authors.initials: B
authors.lastname: Ross
authors.forename: T
authors.initials: T
authors.lastname: Elbert
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D004569:Electroencephalography; D004576:Electromyography; D005260:Female; D006801:Humans; D015225:Magnetoencephalography; D008297:Male; D009044:Motor Cortex / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology*