Objective measurement of mental workload that affects productivity in moderately hot environment

Naoe Nishihara*, Shin Ichi Tanabe, Masaoki Haneda, Satoshi Uchida, Gen Kawaguchi, Yuri Akiyama

*この研究の対応する著者

研究成果: Paper査読

抄録

A subjective experiment was conducted to provide the evidences regarding the mechanism of the effect of indoor environmental quality on productivity by objective evaluation approach. The climate chamber was conditioned at the operative temperatures of 25.5, 28.5 or 31.5° C to examine the relationships among indoor thermal environment, performance and mental workload. The change rate of total hemoglobin concentration (ΔtotalHb) was measured on the left forehead by near infrared spectroscopy as an index of mental workload. Triple-digit multiplication task was assigned at two levels of working speed; maximum and normal pace, to manipulate mental workload. The Δtotal Hb at maximum pace was higher than that at normal pace at both 28.5° C and 31.5° C. The difference of ΔtotalHb between maximum and normal pace were significantly higher at 31.5° C than that at 25.5° C and tended to be higher at 28.5° C than that at 25.5° C. The results suggested that the mental workload level to maintain their task performance with maximum effort was higher in hotter environment.

本文言語English
出版ステータスPublished - 2009 12 1
イベント9th International Healthy Buildings Conference and Exhibition, HB 2009 - Syracuse, NY, United States
継続期間: 2009 9 132009 9 17

Conference

Conference9th International Healthy Buildings Conference and Exhibition, HB 2009
国/地域United States
CitySyracuse, NY
Period09/9/1309/9/17

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設

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