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Establishment of mental stress assessment method based on circulatory multiple parameters.

Research Project

Project/Area Number 07670413
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Hygiene
Research InstitutionNihon University

Principal Investigator

HIRAYANAGI Kaname  Nihon University, School of Medicine, Lecturer, 医学部, 講師 (20189864)

Co-Investigator(Kenkyū-buntansha) YAJIMA Kazuyoshi  Nihon University, School of Medicine, Professor, 医学部, 教授 (40010029)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1995: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsMental stress / Heart Rate Variability / Spectral analysis / Baroreceptor Reflex Sensitivity / Multiple Regression Analysis / 判別分析 / 数量化
Research Abstract

The author proposed an experimental model to assess the level of mental stress. The model named "step-wise mental arithmetic test (SWMAT)" consists of graded mental stress stages and basic stages. The relation between pace level of mental arithmetic and subjective measures (self-description of 0-10 categorical score), and performance measures (percent of correct answer) at each stage were examined in 15 young male volunteers to evaluate the usefulness of the SWMAT.Heart rate (HR), low-frequency band power (LFP) and high-frequency power (HFP) of heart rate variability, and baro-receptor reflex sensitivity (BRS) were selected as useful parameters for the estimation of the level of mental stress, since these parameters indicated the monotonous increase or decrease against the intensity of mental stress level in the SWMAT.It was confirmed that the levels of SWMAT could be utilized for the useful indices of mental stress in terms of subjective and performance measurements. The multiple correlation coefficient was about 0.7 in the multiple regression model which is composed of mental stress level (dependent variable) and four kinds of circulatory parameters (independent variables). However, the application of this regression model to the estimation of mental stress level in specific environments was abandoned for the impossibility of noninvasive beat-to-beat continuous blood pressure measurement in the specific environment like high-ambient pressure or high-acceleration environments.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 平柳 要, 岩崎 賢一, 佐賀 健二, 谷島 一嘉: "精神的作業における負荷・負担・疲労についての一考察" 疲労と休養の科学. 11巻1号. 29-35 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 平柳 要, 岩崎 賢一, 神田 省吾, 谷島 一嘉: "メンタルワークロード(MWL)の測定・評価法に関する実験的検討" 人間工学. 32巻5号. 251-259 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kaname Hirayanagi, Kenichi Iwasaki, Kenji Saga, and Kazuyoshi Yajima: "Investigation of Relations of Mental Workload with Mental Stress, Mental Strain and Mental Fatigue." Hiro to kyuyo no kagaku. Vol.11 (1). 29-35 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kaname Hirayanagi, Kenichi Iwasaki, Shogo Kanda, and Kazuyoshi Yajima: "An Experimental Study on the Measurement and Assessment of Mental Workload (MWL)." The Japanese Journal of Ergonomics. Vol.32 (5). 251-259 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 平柳要: "メンタルワークロード(MWL)の測定・評価法に関する実験的検討" 人間工学. 32・5. 251-259 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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