Abstract
Driving performance using dual task paradigm in simulator environment was investigated. Results indicated that both the delay in reaction time to detection task and the increase of evaluated score in mental workload when auditory task was required. Furthermore, the reaction time did not delay but the mental workload was increased when there was a preceding vehicle. This related that more attentional resource was allocated in order to compensate for the detection. Reaction time for the detection task increased when the target was presented in most peripheral visual fields. The possibility that is the interference of additional audio-information for the driving task is discussed.
