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The cognitive basis of the Uznadze illusion
Author(s) -
Cummins James
Publication year - 1976
Publication title -
international journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 62
eISSN - 1464-066X
pISSN - 0020-7594
DOI - 10.1080/00207597608247350
Subject(s) - illusion , psychology , extinction (optical mineralogy) , cognition , fixation (population genetics) , cognitive psychology , social psychology , neuroscience , optics , demography , sociology , population , physics
The present study examines the role of Luria's dimensions of simultaneous and successive synthesis in fixation and extinction of the Uznadze haptic illusion. The subjects were 53 grade 10 high school students. Extinction of the illusion correlated significantly with three measures which, according to Luria's criteria, are indicative of simultaneous synthesis. Correlations between extinction and measures of successive synthesis failed to reach significance. Fixation of the illusion was unrelated to measures of either simultaneous or successive synthesis. An exploratory factor analysis of the data suggested the hypothesis that extinction of the illusion is greatly facilitated when the successive presentations of the spheres are integrated into a simultaneous or contemporaneous pattern.