Figure 4.

RSVP procedure in Experiment 2. Trial sequences for the single task (A, left location cued), dual task (B, both locations cued), and single stimulus display condition (C, left location) are shown. Ellipses indicate more intervals of the same duration, for a total of seven intervals containing objects and six intervening blank intervals. In this example, the observer cue color is red. Mean stimulus and blank ISI durations shown; these were adjusted separately for each observer to produce ∼80% accuracy in the single task.