Effect of Angle of Retinal Vision on the Rate of Fluctuation of the Necker Cube

42 naive Ss between the ages of 18 and 22 and free from eye defects viewed 3 Necker cubes in random order in a study of the effect of angle of retinal vision on the rate of fluctuation. Ss fixated on a dot in the center of each cube which was situated left-face-forward-down for 2-min. trials and cou...

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Bibliographic Details
Published in:Perceptual and motor skills Vol. 26; no. 3_suppl; pp. 1239 - 1242
Main Authors: Dugger, James G., Courson, Ronald W.
Format: Journal Article
Language:English
Published: Los Angeles, CA SAGE Publications 01-06-1968
Perceptual and Motor Skills, etc
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Summary:42 naive Ss between the ages of 18 and 22 and free from eye defects viewed 3 Necker cubes in random order in a study of the effect of angle of retinal vision on the rate of fluctuation. Ss fixated on a dot in the center of each cube which was situated left-face-forward-down for 2-min. trials and counted the number of fluctuations. It was found that fluctuations decreased as the angle of retinal vision increased. The decrease in fluctuation rate between the 3° and 8° angles, although evident, was not significant. However, the decrease in fluctuation rate between the 8° and 13° angles was significant at the .01 level. The study suggests this phenomenon may be more subject to external control than realized and could also be a function of personality. More likely, the phenomenon is an interaction of some nomothetic cortical process and the individual's idiographic peculiarities. Fragmentation and distortion were reported by Ss on all 3 of the cubes. These phenomena support a learning interpretation.
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ISSN:0031-5125
1558-688X
DOI:10.2466/pms.1968.26.3c.1239