Abstract
The purpose of this study is to identify strengths and weaknesses of an eye-gaze input system. The pointing performance of an eye-gaze input, such as reaction time and accuracy, were compared to the performance of a mouse input. Operator’s sensitivity (d’), bias (β) and NASA-TLX were used as metrics for performance assessment during a gauge monitoring task. The results indicated that there was a significant difference in reaction time between a mouse input and eye-gaze input system. The participants who used a mouse as their input device showed more miss responses. However, the eye-gaze device users had more false-alarm responses. For workload, there was no significant difference between the eye-gaze input system and the mouse input system. The findings from this study showed that an eye-gaze system is favorable to the operations requiring fast human reactions and less sensitivity on false. The study provided deeper insight into user behavior regarding an eye-gaze input system.
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