FIG. 1.

(Color online) Illustration of “maintain” and “switch” trial types. In the depicted maintain trial (heavy solid line), listeners would hear cue AA in a male voice, attend to the male voice (“EOPO”) throughout the trial, and respond twice (once for each O). In the depicted switch trial (heavy dashed line), listeners would hear cue AU in a male voice, attend to the male voice (“EO”) for the first half of the trial and the female voice (“DE”) for the second half of the trial, and respond once (to the O occurring at 1.6–2.0 s).