Figure 3
From: Temporal perceptual learning distinguishes between empty and filled intervals

The learning effects of the empty-interval (EI) group (a) and the filled-interval (FI) group (b). The learning curve shows the change from the pre-test in trained interval thresholds (empty-200 ms for the EI group, filled-200 ms for the FI group) across four training sessions and to the post-test. (c) used the same data on the left figures to compare the pre- and post-test mean thresholds of the two groups with individual thresholds presented by scattered points. Error bars indicate between-subject standard errors (s.e.m).