Effects of Miniature CRT (Cathode Ray Tube) Location upon Primary and Secondary Task Performances
Final rept. Sep 1988-Apr 1989
SYSTEMS RESEARCH LABS INC DAYTON OH
Pagination or Media Count:
Dual task performances were investigated as a function of the location of a peripherally-mounted miniature CRT which presented secondary task information. The miniature CRTs location was varied across three levels of elevation and four levels of azimuth. Primary task information was presented by means of a stationary, centrally-located CRT. The primary task required continuous monitoring of the primary display, while the secondary task required continuous tracking of an object on the secondary display. In general, the results indicated that performance decrements were not only a function of the absolute size of the viewing angle formed by the primary and secondary displays, but, in addition, by its direction. For example, 1 primary task performance decrements were generally greater when upward eye shifts were required to view the secondary display than when the corresponding downward eye shifts were required 2 secondary task performance decrements were obtained only with upward eye shifts and 3 lateral eye shifts produced smaller primary task decrements than comparable upward eye shifts.
- Electrooptical and Optoelectronic Devices
- Human Factors Engineering and Man Machine Systems