Evidence for curvilinear interpolation from dot alignment judgements
SourceVision Research, 39, 26, (1999), pp. 4378-4392
Article / Letter to editor
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Visual interpolation between dots responsible for rectilinear vs. curvilinear contour interpretation was examined with the psychophysical forced choice directional response (FDR) paradigm. Regular four-dot polygon segments, together with a target dot, were presented to the subjects for 150 ms. Subjects were required to indicate the direction of deviation of the target dot from the midpoint of the intermediate line segment. Crucial variables were the outer angle of the line segment and symmetry axis orientation of the polygon segment. Logistic regression analysis showed that curvilinear interpolation occurred for angles up to 3o deg, but emerged more pvasively under the vertical symmetry axis orientation up to 60 deg.
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