Effects of verbal and spatial-imagery tasks on eye fixations while driving

Miguel A. Recarte, Luis M. Nunes
2000 Journal of experimental psychology. Applied  
The consequences of performing verbal and spatial-imagery tasks on visual search when driving were studied. Twelve participants drove 84 km on 2 highways and 2 roads. On each route, they performed 2 verbal tasks and 2 spatial-imagery tasks while their eye movements were recorded. The same results were repeated on all routes. Pupillary dilation indicated similar effort for each task. Visual functional-field size decreased horizontally and vertically, particularly for spatial-imagery tasks.
more » ... magery tasks. Compared with ordinary driving, fixations were longer during the spatial-imagery task. With regard to driving performance, glance frequency at mirrors and speedometer decreased during the spatial-imagery task. Results are interpreted in terms of multiple attention-resource theories; implications of internal distractions on road safety are discussed in terms of possible impairment in relevant information processing.
doi:10.1037/1076-898x.6.1.31 fatcat:jvpifbqol5bmjdx7jdrafr2tu4