Fig. 4.

Mean keyword-identification performance as a function of TMR for the subset of BI-CI and SSD-CI listeners tested in experiment 3. The color and number spoken by the interfering talkers (brown or black; nine or ten) were not items included in the response set, precluding the use of lexical information in the interferer-only ear to produce an improvement in performance relative to the monaural condition. Conditions where bilateral performance was significantly better than monaural performance are identified by asterisks (for individual TMRs) and large open stars (for data pooled across TMRs). Error bars indicate ±1 standard error of the mean across listeners.