Flash suppression is a phenomenon of interocular suppression where a monocular prime is immediately followed by dichoptic rival targets, inducing dominance of the contralateral view. Studies examining flash suppression have shown that a prime with visual features provokes feature-selective suppression. This study employed a prime lacking any features and examined the effects on visibility of the dichoptic targets. The prime (homogeneous grey field; luminance, 3.0 cd/m²) was presented to one eye alone for 1000 ms, followed immediately by dichoptic rival targets (blue vs. red squares) for durations of 10-200 ms. Visible colors were contralateral to the prime for targets < 50 ms, and ipsilateral for those > 50 ms. The results suggest that the net erect of flash suppression might be eye-specific and different from feature-selective suppression.

Key words: flash suppression, priming, color, binocular rivalry, permanent suppression