Detection and identification of information presented peripherally inside the car: Effects of driving task demands, stimulus position and direction of motion of the stimulus
2000 (English)Report (Other academic)
The aim was to study the performance of an in-car information system relying exclusively on information presented peripherally by running light
stimuli. The information was presented on displays placed in four different positions; upper, lower, to the right, and to the left. Four different
directions of the running light were used; upwards, downwards, to the right, and to the left. Two levels regarding driving task demands were used.
Thirty-two subjects participated in the study. A repeated-measures design was used. The study was performed in an advanced driving simulator. The subjects task was to report the direction of motion of the peripheral stimuli as quickly as possible. A traffic situation with high demands on the driver caused the subjects to fixate the peripheral stimulus to a lesser extent than when the driving task was less demanding. The upper display was
fixated to a smaller extent than the left or the right one. However, differences in number of fixations between the displays appeared only when the
demands of the driving task were high, not when they were low. No effects of the direction of motion of the stimulus on the number of
fixations appeared. There were very few errors regarding the identification of the direction of the stimulus,
regardless of whether the stimulus was fixated or not. The response times were short. There were differences between display positions. The response time was shortest for the right display and for the lower display, but somewhat longer for the other two displays. It was somewhat shorter when the stimulus was fixated than when it was not. Driving task demands had no effect on response time. Regarding effects of the direction of motion of the stimulus, there was only a very weak interaction with driving task demands and display position. Conclusions: Information presented peripherally in the field of vision by moving stimuli can be acquired quickly and correctly without fixation of the stimuli. An information system using this method of presenting information appears promising. Of the four display positions, the lower one seems to be preferable. It can be expected, however, that it will be more difficult to acquire the presented information under certain ambient light conditions, such as bright sunshine.
Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut. , 2000. , 28 p.
VTI rapport, ISSN 0347-6030 ; 461A
English, Sweden, Driver information, In vehicle information, Peripheral vision, Detection, Attention, Direction, Stimulus, Visual display, Driving simulator
Research subject Road: Vehicles and vehicle technology, Road: ITS och vehicle technology; Road: Traffic safety and accidents, Road: Road user behaviour
IdentifiersURN: urn:nbn:se:vti:diva-1756OAI: oai:DiVA.org:vti-1756DiVA: diva2:670545