Figure 2. Design.

(A) In Experiments 1 and 2, all objects were viewed three times during the practice phase. Each object was assigned to the Constant, Switch, or Passive condition. For Constant objects, the same feature was reported throughout both the practice and test phases. Switch objects were probed on the same feature in the practice phase but on an unpracticed feature in the test phase. Passive objects were viewed the same number of times during the practice phase, but no features were reported; one of the unpracticed features was subsequently tested. (B) In Experiment 3, all objects were viewed twice during the practice phase. Each object was assigned to the Constant, Switch, or Variable condition. Constant and Switch conditions were identical to before (but with two repetitions). For Variable objects, two different features were retrieved in the practice phase, and like the Switch condition, an unpracticed feature was subsequently tested.