Abstract
In our previous study, the silent reading time, the gaze duration and the saccade were measured using point-of-regard measurement for evaluating legibility. And, we reported that the silent reading time and the gaze duration were extended and the saccade was shortened, when the contrast between characters and a background decreased. This result showed that luminance contrast may influence perception and cognition process. In this report, the influence of perception and cognition process by luminance contrast of perception and cognition process by luminance contrast was measured using EOG and EEG analysis. As the result, P300 latency was extended, when the luminance contrast decreased. Therefore, it was shown that luminance contrast has influenced the perception and cognition process.
