title: Mechanical stimulation of the fingertip can induce bursts of beta oscillations in sensorimotor areas.
abstract: Short mechanical stimulation of the fingertip was studied in 10 subjects using 34 closely spaced EEG electrodes overlying sensorimotor areas. The tactile skin stimulation device consisted of a dot matrix printer head. Each stimulus lasted 10 msec with an interstimulus interval of 4 seconds. Tactile stimulation induced beta oscillations, which were largest in the 16 to 20-Hz band, with a maximum centered within 1 second after stimulation. These beta oscillations were found over both hemispheres with a clear dominance over the contralateral hand representation area.
authors.affiliation: Department of Medical Informatics, Institute of Biomedical Engineering, Technical University of Graz, Austria.
authors.forename: G
authors.initials: G
authors.lastname: Pfurtscheller
authors.forename: G
authors.initials: G
authors.lastname: Krausz
authors.forename: C
authors.initials: C
authors.lastname: Neuper
mesh_terms: D000328:Adult; D001611:Beta Rhythm; D003344:Cortical Synchronization; D004292:Dominance, Cerebral / Q000502:physiology; D004569:Electroencephalography; D005073:Evoked Potentials, Somatosensory / Q000502:physiology; D005260:Female; D005385:Fingers / Q000294:innervation*; D006801:Humans; D008297:Male; D008465:Mechanoreceptors / Q000502:physiology*; D009044:Motor Cortex / Q000502:physiology*; D010812:Physical Stimulation; D012016:Reference Values; D012815:Signal Processing, Computer-Assisted; D013003:Somatosensory Cortex / Q000502:physiology*; D014110:Touch / Q000502:physiology*