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Performance in the Mueller-Lyer Illusion was analyzed for whole and partial presentations of the figure. S s were 120 third grade boys and girls. Four experimental groups were formed with the use of the human abilities model of simultaneous and successive syntheses, and the two types of presentation were given to each group. Results indicated that illusory effects in both presentations of the figure were significantly reduced by ability in simultaneous synthesis. Performance in the two presentations was also affected by successive ability, but these effects were in opposite directions for the two forms of presentation. The results did not support Piaget's theory of perceptual development, although they were consistent with the theory of simultaneous and successive syntheses. Suggestions are made for the design of future research.
R F Jarman
December 1959,
The American journal of psychology,
R F Jarman
August 1964,
Perceptual and motor skills,
R F Jarman
January 1964,
Zeitschrift fur Psychologie mit Zeitschrift fur angewandte Psychologie,
R F Jarman
February 1981,
Perceptual and motor skills,
R F Jarman
February 1974,
Perceptual and motor skills,
R F Jarman
May 1984,
The Quarterly journal of experimental psychology. A, Human experimental psychology,
R F Jarman
October 1973,
Perceptual and motor skills,
R F Jarman
April 1981,
Perceptual and motor skills,
