Affiliation:
1. U.S. Army Research Institute Alexandria, Virginia
Abstract
The applicability of a serial exhaustive memory scan as a model of the observer's cognitive behavior in a target acquisition task was explored. Reaction times were examined for identification, recognition and set responses to stimulus scenes consisting of armored vehicles varying in view (side, front), background (forest, road, plain), and downlook angle (10°, 20°, 30°). Positive set size was either one, two, or four vehicles. The results were consistent with a serial exhaustive memory search model and provided evidence for background and downlook angle as additive factors and type of response as an interactive variable.