情動に関連する指せん容積脈波分析の一つの試み　　基線動揺成分とはく動波成分の視覚的表出

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タイトル別名
  • Spectral analysis of finger photoelectric plethysmogram in its relation to emotion
  • ジョウドウ ニ カンレンスル シセン ヨウセキ ミャクハ ブンセキ ノ ヒトツ
  • 基線動揺成分と搏動波成分の視覚的表出

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The present study applied spectral analysis of finger photoelectric plethysmogram (PTG) to describe the emotional factor involved in baseline deflection of PTG. Using 23 normal male students as subjects, PTG was measured under rest, verbal instruction, and electric shock conditions. PTG spectral analysis via fast Fourier transform was carried out on the consecutive 10×9ms×1024 points×4 (398.64s) samples in each condition with frequency resolution at 0.0109Hz. In the analysis of power spectra, two distinct power peaks were observed in all conditions; below 0.3Hz and around 1.0Hz. It was confirmed that the former was baseline deflection and the latter was heart beat component. There were no differences in each peak frequency among conditions. Whereas peak power below 0.3Hz tended to increase all through verbal instruction and electric shock conditions as compared to rest one. These results were discussed in relation to anxiety involved in emotion.

収録刊行物

  • 心理学研究

    心理学研究 53 (2), 102-106, 1982

    公益社団法人 日本心理学会

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