Perception of curves.

Perceptual and Motor Skills
L Zusne

Abstract

In 4 experiments, in which 66 subjects participated, the perception of 6 types of curved contours in two-dimensional shapes was studied. Random polygons and their curvilinear transformations were presented for detection under low-luminance contrast conditions, oddity-type discrimination problem solving, tachistoscopic identification, and identification involving visual acuity in distance vision. In all experiments curvature affected perception at statistically significant levels, but the extent of this effect was a function of (1) the locus and direction of curvature, (2) the level of compactness-jaggedness of the figure, and (3) the nature of perceptual task. Shapes with acute corners were more easily perceived than shapes with curved corners. Within these two classes of shapes, those with convex sides were perceived as having greater curvedness than those with concave contours. However, the degree to which curvature affected response was determined primarily by the nature of the perceptual task.

References

Nov 1, 1967·Canadian Journal of Psychology·J Ogilvie, E Daicar
May 1, 1954·Psychological Review·F ATTNEAVE
Nov 1, 1956·Psychological Bulletin·M D ARNOULT, F ATTNEAVE
Apr 1, 1957·Journal of Experimental Psychology·F ATTNEAVE

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Citations

Jan 1, 1988·Perception·I Alter, E L Schwartz

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