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Somatosensory & Motor Research Volume 11, 1994 - Issue 2
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Original Article

Contingent Negative Variations Associated with Jaw Opening in Humans

Ichiro Nakajima Department of Pedodontics, School of Dentistry Nihon University, 1-8-13 Kanda Surugadai, Chiyoda-ku, Tokyo, 101, Japan
,
Mitsuko Miyauchi Department of Pedodontics, School of Dentistry Nihon University, 1-8-13 Kanda Surugadai, Chiyoda-ku, Tokyo, 101, Japan
,
Keiko Minowa Department of Pedodontics, School of Dentistry Nihon University, 1-8-13 Kanda Surugadai, Chiyoda-ku, Tokyo, 101, Japan
,
Morito Akasaka Department of Pedodontics, School of Dentistry Nihon University, 1-8-13 Kanda Surugadai, Chiyoda-ku, Tokyo, 101, Japan
&
Atushi Uchida Department of Pedodontics, School of Dentistry Nihon University, 1-8-13 Kanda Surugadai, Chiyoda-ku, Tokyo, 101, Japan
Pages 149-152 | Accepted 04 Mar 1994, Published online: 10 Jul 2009
 
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Abstract

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.

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