Influence of Peripheral Environment Luminance and Visual Performance on Shifts of Depth Attention in Three-Dimensional Space

Abstract

A series of three experiments were conducted to investigate the relation between shifts of attention in depth and subjects' visual performance or peripheral environment luminance in three-dimensional (3-D) space. Previous researchers have examined various aspects of shifts of visual attention in 3-D space. However, there were few studies to study the relationship of depth attention and peripheral environment luminance. Firstly, visual function performance of subjects was tested by means of visual measurement apparatus in experiment 1, and experimental data was divided into two groups. And then, mean reaction time (RT) of subjects was examined by changing peripheral environment luminance using a semi-realistic setting, the depth attention experiment apparatus in experiment 2. Finally, changing forecast degree examination was conducted to subjects with low visual adaptability in order to reveal the relation between delay of reaction time and forecast degree in experiment 3. The major results was shown that (1) visual performance of subjects had an individual difference; (2) shifts of attention from far space to near space was faster than the reverse under each different condition; (3) the training for visual adaptive ability can improved visual performance of subjects.

Application of a Measuring System for Visual Judgment Ability of Drivers in Real Three-Dimension Space

“…Another primary reason is the effect of the driver's visual judgment ability on their operation. With the popularization of the information prompt instruments in the car interior like automobile navigation system and speedometer, drivers have obtained more and more information (including the colour of the information in car exterior and interior) [9]. So, it is very important to examine the driver's visual judgment ability of drivers in real three-dimension space.…”