Abstract
Five experiments are presented that examine observers' reports with a new tri-stable reversible figure using two measures of observers' experience with the figure: observers' initial percept upon figure presentation in the test period and the total number of reversals reported in the test period. Experiment 1 demonstrates the equiprobability of the three alternatives for the figure. Experiment 2 demonstrates the powerful effect of fixation location on observers' reported organization of the tri-stable figure. Experiment 3 demonstrates clear priming effects following brief presentation of particular components of the tri-stable figure. Experiment 4 demonstrates clear adaptation effects following prolonged presentation of the same components of the figure used in experiment 3 as well as the transient nature of this adaptation. Experiment 5 demonstrates observers' ability to “hold” each of the three percepts regardless of fixation location. The special sensitivity of the tri-stable figure to these manipulations even with naive subjects and small sample sizes is discussed, and the interplay of both bottom–up and top–down processes on figural reversal is emphasized.
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