Effect of luminance of visual stimuli on the PSP response latency. A–C, Example contralateral (blue) and ipsilateral (red) PSPs evoked by one of three spatial phases of static gratings with 100, 50, and 25% luminance in the binocular cell from pre-CP (A), CP (B), and adult (C) mice. D–F, Summarized results from the experiments shown in A–C. Data connected with a line are from the same cell. Filled circles with error bars: mean ± SD. p values were calculated using the Wilcoxon signed-rank test.