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The assessment of components involved in illusion formation using a long-term decrement procedure |
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| Authors: | Joan S. Girgus Stanley Coren Mitchell Durant Clare Porac |
| Affiliation: | 1. The City College of the City University of New York, 10010, New York, New York 2. University of British Columbia, Vancouver, British Columbia, Canada 3. University of Wisconsin, 53706, Madison, Wisconsin 4. University of Victoria, Victoria, British Columbia, Canada |
| Abstract: | Available evidence seems to indicate that illusion decrement represents reorganization of cognitive components involved in visual-geometric illusions. Observers viewed one of the two forms of the Mueller-Lyer illusion, containing differential opportunities for peripheral structural interactions, for a 10-min test session on each of 5 successive days. The magnitude of the distortion decreased to a different asymptotic level in each of the two configurations with the form, with more opportunity for structural interactions showing the higher asymptote. Thus, this asymptote probably represents the structural or physiological contribution to the illusory distortion. |
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