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© 1975 American Academy of Neurology Cerebral responses to electrical tooth pulp stimulation in manAn objective correlate of acute experimental painDivisions of Electroencephalography and Clinical Neurophysiology and of Neurology, University of Washington School of Medicine, and the Department of Restorative Dentistry, University of Washington School of Dentistry, Seattle. The pulp of individual teeth of 17 normal adult volunteers was electrically stimulated via pairs of electrodes implanted into dentine. Computer-summated responses recorded from the surface of the head were composed of two concurrent sequences of events, one of which was seen maximally over midline areas and the other over the lower portions of the postcentral regions. Appropriate tests demonstrated that these wave forms represented cerebral tooth pulp-evoked potentials. Because tooth pulp-evoked potentials represent objective, quantifiable, nonverbal concomitants of central events associated with the perception of noxious stimuli, they may prove helpful in investigating acute experimental pain in man. This work was supported by USPHS grants DE03485 and RR-37. Read in part at the annual meeting of the American Electroencephalographic Society, Seattle, July 24, 1974. Received for publication February 5, 1975. Dr. Chatrian's address is Division of Electroencephalography and Clinical Neurophysiology, NN283 University Hospital, SB-10, Seattle, WA 98195.
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