A Study of a Physiological Index for Evaluating Driver's Mental Workload

Various studies were conducted on a PC-based simulator to identify physiological indices that are sensitive to changes in mental workload. The results confirmed that, when mental workload changes, a response can be observed in the tissue blood volume of the nose tip of the test subjects. This paper presents the results of experiments that were conducted to examine whether similar blood volume responses would appear under simulated driving conditions. The results confirmed that the tissue blood volume level was reduced by the increased mental workload imposed by the execution of a subsidiary task, suggesting that the tissue blood volume level can serve as an index for evaluating driver mental workload.

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  • Authors:
    • Takae, Yasuhiko
    • Etori, Nariaki
    • Watanabe, Takayuki
    • Kubo, Noriharu
    • Yoshitsugu, Noritoshi
    • Miyake, Shinji
  • Publication Date: 2005-4


  • English

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Filing Info

  • Accession Number: 01007215
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Files: HSL, TRIS, USDOT
  • Created Date: Nov 2 2005 11:15AM