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(A) Performance-intensity functions (mean plus 95% confidence intervals) are shown for the 16-channel (open circles) and 6-channel (closed circles) vocoded sentences measured during the physiological test session where SNRs were randomized. (B) Performance-intensity functions across the behavioral (squares) and physiological (circles) test sessions are very similar. (C) Mean effort ratings for 16-channel and 6-channel vocoded material measured in the behavioral test session.
