Hs. Chan et Aj. Courtney, VISUAL PERFORMANCE ON DETECTION TASKS WITH 2 TARGETS, The International journal of human factors in manufacturing, 5(4), 1995, pp. 417-428
Horizontal visual lobe boundaries were measured using a single type of
target for one-target and two-target detection tasks. The range of se
nsitivity for two targets was found to be smaller than for one target.
Also, for the two-target task, when the targets were on opposite side
s of the fixation point and only one target was detected, the presence
of the undetected target affected the boundary. These results suggest
that further work is necessary to understand the usefulness of single
-target lobe area data for multiple-target search tasks. A significant
correlation was found between the boundary for one-target detection a
nd performance on the two-target test. (C) 1995 John Wiley & Sons, Inc
.