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  • Title: Figure-ground organization in different phases of the perceptual alternation phenomenon.
    Author: Tuccio MT.
    Journal: Percept Mot Skills; 1995 Dec; 81(3 Pt 1):1043-58. PubMed ID: 8668426.
    Abstract:
    Two experiments on figure-ground organization were designed to examine whether the regions of an ambiguous stimulus perceived as "figure" vary as a function of regional area and experience with the stimulus. In Exp. 1 the perceived duration of each interpretation was recorded during continuous viewing for 10 subjects who had been trained until both percepts appeared with statistical regularity (stationary phase). In Exp. 2 the first interpretation reported by 172 naive observers after a few seconds of pattern exposure was recorded. The well-known tendency to interpret smaller regions as figure was noted in Exp. 2 whereas the results of Exp. 1 suggested equal probability of the percepts. Over-all results suggest that alternation is learned during the transient or "early" phase of perception, with some stimulus features and cultural factors influencing the figure-ground organization. During the stationary or late phase of perception the subject is well practiced and the alternating of interpretations becomes largely automatic.
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