Spectrum Analysis of Trigeminal Mesencephalic Neuron Activities During Chewing.

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  • Gocho Tetsuya
    <I>Graduate School of Science and Technology, Niigata University</I>
  • Kiryu Tohru
    <I>Graduate School of Science and Technology, Niigata University</I>
  • Yamada Yoshiaki
    <I>Department of Oral Physiology, School of Dentistry, Niigata University</I>
  • Saitoh Yoshiaki
    <I>Department of Information Engineering, Faculty of Engineering, Niigata University</I>

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  • そしゃく運動時における中脳路核神経活動のスペクトル解析

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Abstract

Various aspects of physical function of living beings have been solved because of recent advances in physiology. Many studies of living beings have been made in the engineering field as well. In this study, we analyzed the relation between the muscle activities and the information from the sensory receptors during chewing by the spectrum analysis. Trigeminal mesencephalic nucleus activities, myoelectric signals of masticatory muscle and jaw movements were recorded in freely moving rabbits during chewing, and analyzed by the bispectrum method. Taking the time-varying behavior of masseter muscle activity into account, there is a difference of spectrum between an opening stroke and a closing stroke. It seemed that the results were reflected in the functional differences of muscle spindle activity.

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