Presentation
106. Oculomotor Predictors of Usability: Visual Search Guidance and Target Verification
SessionPoster Session 1
DescriptionMany studies have examined how changes in interface design impact oculomotor performance and usability. However, a clear link between the distinct cognitive processes involved in visual search (attentional guidance to targets/object recognition) and subjective usability scores hasn’t been demonstrated. We recorded eye movements during a visual search task. Conditions were blocked within-subjects (search difficulty; easy/difficult) and target response method (fixation-based/mouse/keyboard). Following each block, participants completed post-task usability surveys. Response selection method was irrelevant to analyses but used to mask the study goal, linking cognitive operations of search to usability. Our findings suggest that differences in guidance and object recognition measures between difficulty conditions can predict differences in usability scores, as measured by the After Scenario Questionnaire and the NASA Task Load Index. Future work should continue to explore using objective behavioral measures of usability to enhance summative usability assessments.
Event Type
Poster
TimeWednesday, September 11th5:30pm - 6:30pm MST
LocationMcArthur Ballroom
Aerospace Systems
Cognitive Engineering & Decision Making
Computer Systems
Forensics Professional
Health Care
Human Performance Modeling
Individual Differences in Performance
Perception and Performance
Product Design
Safety
Training
Usability and System Evaluation
Extended Reality