Accession Number : AD0660115

Title :   INFLUENCE OF PROLONGED VIEWING OF LARGE-SCALE DISPLAYS ON EXTRACTION OF INFORMATION.

Descriptive Note : Final rept. May 66-May 67,

Corporate Author : OHIO STATE UNIV COLUMBUS HUMAN PERFORMANCE CENTER

Personal Author(s) : Johnston,William A. ; Howell,William C.

Report Date : SEP 1967

Pagination or Media Count : 66

Abstract : Six experiments were conducted in an effort to systematically appraise the effects of selected variables on sustained attention to a complex display. The goal was to isolate task conditions yielding poor or unstable monitoring performance, and to assess the feasibility of overcoming these detrimental effects by modifying the characteristics of the display. The investigation of task variables revealed that either a slow rate of signals or a low ratio of relevant to irrelevant signals is likely to yield inferior monitoring performance. The manipulation of display variables under these undesirable task conditions indicated that the inhibitory effect of low signal frequency can be combated by making the stimulus codes dissimilar and by using a high-quality display, and that the deleterious effect of a low ratio of relevant to irrelevant signals can be minimized by making the irrelevant stimulus codes dissimilar and, in some cases, by using a high-quality display.

Descriptors :   (*DISPLAY SYSTEMS, HUMAN FACTORS ENGINEERING), (*SCREENS(DISPLAYS), APPLIED PSYCHOLOGY), CHARACTER RECOGNITION, LEARNING, MEMORY(PSYCHOLOGY), PSYCHOLOGICAL TESTS, VISUAL PERCEPTION, PERFORMANCE(HUMAN), ATTENTION, MONITORS, TELEVISION DISPLAY SYSTEMS

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE