Fig. 2.

Listener performance in control and experimental sessions. Discrimination accuracy of sound pairs in AXB tasks is plotted on the ordinate. Black bars denote performance by separate listener groups in control experiments (absent passive exposure). Colored bars denote Experiment 1 performance (Consistent: blue; Orthogonal: red; Single-cue: green) immediately following passive exposure (left bar in each pair, labeled “Early”) and after further active discrimination (right bar in each pair, labeled “Late”). The dashed line at 50% accuracy indicates chance performance. Error bars denote SEM. Asterisks indicate significant contrasts of interest assessed by paired-sample t tests following Bonferroni correction for multiple comparisons (P < 0.0167).