The inverted-T illusion was studied by the magnitude estimation method. The horizontal line in the inverted T is perceptually shorter than the same horizontal line presented singly, and the vertical line in the inverted T is perceptually longer than the same vertical line presented singly. Thus, the inverted-T illusion is due to both a perceptual lengthening of the vertical line and a shortening of the horizontal line. In the light of these findings, current theories of the illusion seem to give unsatisfactory explanations. © 1983 Psychonomic Society, Inc.
A magnitude estimation study of the inverted-T illusion
MASIN, SERGIO CESARE;VIDOTTO, GIULIO
1983
Abstract
The inverted-T illusion was studied by the magnitude estimation method. The horizontal line in the inverted T is perceptually shorter than the same horizontal line presented singly, and the vertical line in the inverted T is perceptually longer than the same vertical line presented singly. Thus, the inverted-T illusion is due to both a perceptual lengthening of the vertical line and a shortening of the horizontal line. In the light of these findings, current theories of the illusion seem to give unsatisfactory explanations. © 1983 Psychonomic Society, Inc.
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