Figure 5.

Trial events for the (A) simultaneous, (B) sequential, and (C) repeated conditions in Experiment 3. The items from Experiment 1 were respaced to produce a single set of 16 items. Observers participated in three experimental sessions using these displays, each of which had a different task. In the report orientation task, observers were told to ignore size and report whether the mean orientation of the entire set is tilted left or right relative to vertical. The correct answer is “right” in this example. In the report size task, observers ignored orientation and reported whether the mean size of the entire set was larger or smaller than the size of a probe circle (not shown) that was set to the mean diameter of the distractor distribution. The probe circle was only presented on practice trials. In the report orientation and size task, observers reported both features. The correct answer is “right and large.”