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Author Rebecca CHARLES and Jim NIXON |
| Abstract Physiological measures have increased in popularity due to the growing availability of equipment allowing their measurement in real-time. Eye blinks are an easy measure to collect using video capture. Our findings indicate that blink counts can differentiate between taskloads and task types during a computer-based task, and reflect subjective workload ratings. Blink counts were significantly lower during the tasks involving high visual load when compared to less visually demanding tasks, and lower numbers of blinks were observed under higher taskloads across tasks with a higher visual load. Significant correlations were observed between blink counts and all dimensions of the NASA-TLX for a tracking task, and the mental demand dimension for the combined system monitoring and resource management. No significant correlations were observed for the less visually demanding communications task. |
