Fig. 3.
Stimuli and results of Experiment 3. (A) Effect of mixture variability persists with asynchronous and alternating presentation. Conditions 3 and 4 differ in the pairing of the target with variable (condition 3) or repeated (condition 4) distractors. (B) Subjects can perform task even when incorrect probes are time-reversed versions of the target sound, or when the target sound is presented irregularly.