Experiment 2.

<p>Effects of visual flickers on interval timing perception. Psychometric functions showed the mean probability of the comparison stimulus perceived longer than the standard stimulus. The results for the standard duration of 3-s (A) and 1-s (B) were plotted separately. The red arrows indicate significant PSE shifts. (C) The shift rates of the PSE (point of subjective equality). Error bars represent the 95% confidence interval for each comparison duration.