Figure 4.

Hank’s performance by 250-trial block in the RMTS task of Experiment 2. The top panel gives the average level of perceptual support Hank experienced at each trial block. The definition of these levels of perceptual support is given in the text. The succession of different tasks that Hank received is indicated by an alternation of filled and open symbols, or by a lapsing of the black symbols during a task method that only presented zero-similarity trials. These specific tasks are described in the text. The concurrent or sole presence of zero-similarity trials—that offered no perceptual support—is indicated by the red symbols at perceptual level 0. The bottom panel gives Hank’s proportion correct for all trials in each trial block, with task alternation indicated as just described. Performance is shown on trials that potentially offered some level of perceptual support (black symbols) and on zero-similarity trials that offered no perceptual support.