Accession Number : AD0778298

Title :   Predicting Human Performance. VII. Visual Search for Complex Targets.

Descriptive Note : Technical rept.,

Corporate Author : NEW MEXICO STATE UNIV UNIVERSITY PARK DEPT OF PSYCHOLOGY

Personal Author(s) : Teichner,Warren H. ; Mocharnuk,John B.

Report Date : APR 1974

Pagination or Media Count : 42

Abstract : Using available data, search time and stimulus processing rate for a multidmensional target in an array were analysed with respect to number of displayed stimuli and total stimulus information. Other factors also considered were the probability of target detection as a function of number of displayed stimuli, target familiarity, and visual noise. The major findings were that search time decreases and stimulus processing rate increases as the number of dimensions in a multidimensional target increase, and that the rate of processing increases as a function of total stimulus information. A model of total stimulus information which assumes sequential processing of dimensions in order of increasing features or levels was found to fit the data reasonably. (Author)

Descriptors :   *Performance(Human), *Searching, *Targets, Predictions, Vision, Target discrimination, Target recognition, Stimuli, Target detection

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE