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Technical Paper

Driver's Cognition in Peripheral Field of View

This paper concerns driver's burden for visual information processing in which his central vision is coupled with his peripheral one. A visual driving simulator was applied to the first step of the study, where driver's responses to both central and peripheral tasks were simultaneously investigated. The series of test indicate that the driver's responsiveness to the central and peripheral tasks could define the whole burden for visual information processing. Therefore, it appears that the responsiveness to the peripheral vision could be more or less compromised to support the central one.
Technical Paper

Reduction in Arousal Level of a Driver

One of the leading causes of traffic accidents is the reduction of driver's arousal level. Only a driver with an appropriate arousal level can drive an automobile properly. The purpose of this research is to find the possibility of quantifying the reduction of this arousal level. Two methods are used to quantify the reduction in arousal level: one is related to the driver's behavior, and the other is related to his physiological status. The characteristics of controlling the steering wheel are used as indicators of the driver's behavior, which represents the status of information processing in the brain. The variation of heart rate is used as an indicator of physiological status, which could directly represent arousal level related to drowsiness. Eight male and two female drivers participate both in on-the-road tests for the characteristics of controlling the steering wheel and in a test with a driving simulator for the heart rate variation.