Mechanical Stimulation of the Fingertip Can Induce Bursts of β Oscillations in Sensorimotor AreasPfurtscheller, Gert*; Krausz, Gunther†; Neuper, Christa†Journal of Clinical Neurophysiology: November 2001 - Volume 18 - Issue 6 - pp 559-564 DEEP BRAIN STIMULATION: Original Contributions Abstract Author Information Summary : 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 β oscillations, which were largest in the 16 to 20-Hz band, with a maximum centered within 1 second after stimulation. These β oscillations were found over both hemispheres with a clear dominance over the contralateral hand representation area. *Department of Medical Informatics, Institute of Biomedical Engineering and the †Ludwig Boltzmann Institute for Medical Informatics and Neuroinformatics, Technical University of Graz, Austria Supported by the Austrian “Fond zur Förderung wissenschaftlicher Forschung,” project P14831. Address correspondence and reprint requests to Dr. Gert Pfurtscheller, Department of Medical Informatics, Institute for Biomedical Engineering, Technical University of Graz, Inffeldgasse 16a/II, A-8010 Graz, Austria. Copyright © 2001 American Clinical Neurophysiology Society
