@article{ref1,
title="Discomfort glare is task dependent",
journal="International journal of vehicle design",
year="1991",
author="Sivak, Michael and Flannagan, Michael J. and Ensing, M and Simmons, Carole J.",
volume="12",
number="2",
pages="152-159",
abstract="This study evaluated the effect of task difficulty on discomfort glare. Subjects performed two tasks on each trial. The first was a gap-detection task, in which the subject indicated whether the gap had appeared on the top or bottom edge of the outline of a briefly projected square. The difficulty of this task was manipulated by changing the size of the gap in the square. The second was a discomfort-glare rating, in which the subject gave a numerical rating of the discomfort experienced from a glare source that was presented simultaneously with the gap-detection stimulus. The hypothesis was that the resulting changes in the difficulty of the gap-detection task would influence discomfort glare. The results indicate that (1) an increase in the difficulty of the gap-detection task resulted in an increase in discomfort glare, and (2) subjects with poorer overall gap-detection performance tended to assign more discomfort to the glare stimuli than subjects with better gap-detection performance. These results are consistent with the hypothesis that discomfort glare is related to task difficulty. Consequently, a valid evaluation of discomfort glare in a given situation requires the presence of the relevant visual task. One interpretation is that task difficulty influences discomfort glare by modifying an observer's perceived level of visual impairement.<p />",
language="en",
issn="0143-3369",
doi="",
url="http://dx.doi.org/"
}