Computerized Analysis of Eye Movements during Static Display Visual Search.
Interim rept. Jun 73-Apr 75,
VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF INDUSTRIAL ENGINEERING AND OPERATIONS RESEARCH
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A computerized analysis technique was developed for the evaluation of eye movements. This techique, when applied to eye movement data of 1 millisecond temporal resolution, is considered useful to evaluate such eye movement parameters as fixation duration, interfixation distance, and number of fixations per trial. This analysis technique was evaluated for displays having a single target and up to 192 nontargets in a static display. The results indicate that fixation duration is unaffected by the density of nontargets, but that the mean interfixation distance decreases linearly with increases in nontarget density. Due to this decrease in interfixation distance, the search time and the number of fixations per trial increase linearly with the density of nontargets. An overall evaluation of the eye movement measuring device is offered. Author
- Optical Detection and Detectors