Contingent negative variations associated with jaw opening in humans.
We examined the relationship between contingent negative variation (CNV) amplitude and digastric muscle activity in jaw-opening motor task. Subjects were instructed to open their jaws in response to a sound stimulus following a visual warning stimulus. Electroencephalograms were averaged by using the visual stimulus pulse as a trigger. Bilateral CNVs were clearly recorded at several cortical locations, with a tendency for larger amplitudes at temporal placements.
Department of Pedodontics, School of Dentistry, Nihon University, Tokyo, Japan.
I
I
Nakajima
M
M
Miyauchi
K
K
Minowa
M
M
Akasaka
A
A
Uchida
D000328:Adult; D002540:Cerebral Cortex / Q000502:physiology*; D003265:Contingent Negative Variation / Q000502:physiology*; D004292:Dominance, Cerebral / Q000502:physiology*; D004569:Electroencephalography; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008410:Masticatory Muscles / Q000294:innervation*; D009044:Motor Cortex / Q000502:physiology; D009119:Muscle Contraction / Q000502:physiology*; D012016:Reference Values; D013703:Temporal Muscle / Q000294:innervation