Learning effects while passively viewing the Necker cube.

Over a 2-wk. period 15 high school students passively viewed a Necker cube for 5 trials (90 sec. per trial). The number of reversals per trial indicates there were practice effects. Measures of tolerance of ambiguity (Tolerance of Ambiguity), anxiety (General Anxiety Scale and Test Anxiety Scale), and rigidity (Breskin's Rigidity) were administered. Pearson correlations indicate that tolerance of ambiguity was not associated with viewing an ambiguous figure, the Necker cube. Analysis also suggests the more rigid the person's outlook, the fewer reversals were reported, and exposure to viewing the figure lowers anxiety.