覚醒水準の指標としての皮膚抵抗値に関する実験的研究

DOI Web Site PubMed 被引用文献4件
  • 高野 研一
    財団法人電力中央研究所ヒューマンファクター研究センター
  • 長坂 彰彦
    財団法人電力中央研究所ヒューマンファクター研究センター
  • 吉野 賢治
    財団法人電力中央研究所ヒューマンファクター研究センター

書誌事項

タイトル別名
  • Experiment on validity of skin resistance level as an index of arousal level.
  • カクセイ スイジュン ノ シヒョウ トシテノ ヒフ テイコウチ ニ カンスル

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説明

It is important in establishing and improving work management and work planning to estimate the arousal level of workers during operation and monitoring tasks. This paper proposes a technique based on experimental results to estimate the arousal level during job execution.<br>In this experiment, both a monotonous low workload task which degrades the arousal level and a high workload task which has an awakening action were alternately applied to five subjects for three hours. Skin resistance level (SRL) as an index of arousal level of the autonous nervous system was measured with subjective drowsiness and task performance, that is, signal omission probability for low workload task and both reaction time and error probability for high workload task, as indexes of arousal level of the central nervous system. The following results were obtaind.<br>(1) The results suggested that SRL as an index of arousal level of the autonous nervous system is significantly related and correlated with subjective drowsiness and signal omission probability as indexes of arousal level of the central nervous sytem.<br>(2) The average reaction time and the error probability tended to increase by the application of high workload when the arousal level was degraded. The influence of degraded arousal continued for a short time and showed an unfavorable effect on task execution. The degree of this influence, however, differed between subjects.<br>(3) SRL can be used as an index of arousal level of the autonous nervous system because the measurement is comparatively easy and is little influenced by artifacts due to body movements.<br>(4) Using SRL at initial high workload period as the standard value, it is possible to quantify the SRL value at arbitrary time by estimating how many times the standard value goes into the SRL value. Based on this quantified value as an index of arousal level, comparison with task performance can be made.<br>The proposed index of arousal level of the autonous nervous system showed a significant correlation with indexes of the central nervous system. This technique can be applied to various kinds of estimation on human characteristics accompanied with changes in arousal level.

収録刊行物

  • 産業医学

    産業医学 35 (4), 257-268, 1993

    社団法人 日本産業衛生学会

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