Citation

Yamaguchi M, Sakakima J. J. Int. Med. Res. 2007; 35(1): 91-100.

Affiliation

Graduate School of Science and Engineering for Research, University of Toyama, Toyama, Japan. yamag@eng.u-toyama.ac.jp

Copyright

(Copyright © 2007, Field House Publishing)

DOI

unavailable

PMID

17408059

Abstract

The purpose of this study was to evaluate salivary amylase activity (sAMY) as an indicator of the acute psychological effects of driving. The influence of the operation of a device not directly associated with driving was also estimated using a car navigation system. The psychological effects of driving were examined using sAMY analysis, oculomotor angle and subjective evaluation with a questionnaire, and the methods were compared. The change in sAMY over time was analysed before and during driving. The results indicate that the psychological effect of driving-induced stress, a condition that cannot be easily detected or recognized by a subjective evaluation, is quickly quantified using sAMY. Moreover, the results suggest that the operation of a non-driving-related device may also reduce the driver's capacity to concentrate on driving.

Language: en