FIG. 3.

(Color online) Group-mean proportion correct plotted against ripple density for the SMR discrimination task. Mean data for the 33.33 and 100 carriers-per-octave-based stimuli are plotted in red and blue, respectively. Long stimuli (1 s) are plotted as circular marks, and solid lines and short stimuli (0.5 s) are plotted as triangles and dashed lines. Error bars represent the standard error of the mean (SEM). All ripple stimuli were presented at a mean level of 75 dBA with a ripple depth of 20 dB. The black dashed line represents chance performance level.