Changes of Pupillary Light Response and Electrodermal Activity (EDA) while doing Tai chi-Quan

DOI
  • KAMADA Akihiko
    Iritech Co., Ltd
  • Takagi Osamu
    Institute for Living Body Measurements International Research Institute
  • KAWANO Kimiko
    Center for the Environmental Study of Life and Mind, Faculty of Science, Toho University:Institute for Living Body Measurements International Research Institute
  • KOKUBO Hideyuki
    Center for the Environmental Study of Life and Mind, Faculty of Science, Toho University:Institute for Living Body Measurements International Research Institute
  • HASHIZUME Shuichi
    Research Institute Morinaga & Co., Ltd
  • KATSURAGAWA Hidetsugu
    Center for the Environmental Study of Life and Mind, Faculty of Science, Toho University
  • YAMAMOTO Mikio
    Center for the Environmental Study of Life and Mind, Faculty of Science, Toho University:Institute for Living Body Measurements International Research Institute
  • WATANABE Tsuneo
    Center for the Environmental Study of Life and Mind, Faculty of Science, Toho University

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Other Title
  • 太極拳実施による瞳孔対光反応及びEDAの変化
  • (The 29th Symposium on Life Information Science)
  • (第29回生命情報科学シンポジウム)

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Abstract

To observe various physical indices while doing Taichi-quan, we measured in this paper the pupillary light response and electrodermal activity (for skin conductance level; SCL) in a beginner and an experienced person who has trained for 20 years. In the experiments, pupillary light response and SCL were shown to change diametrically to each other. As each of those two indices is known to be related to autonomic nerve actions, the results might suggest differences of autonomic stimulation or acceptance/response at the target tissue (such as regional differentiation of sympathetic efferents) among various organs or tissues.

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