The assessment of components involved in illusion formation using a long-term decrement procedure

Joan S. Girgus; Stanley Coren; Mitchell Durant; Clare Porac

doi:10.3758/BF03204102

The assessment of components involved in illusion formation using a long-term decrement procedure

Joan S. Girgus, Stanley Coren, Mitchell Durant, Clare Porac

Psychology

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

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.

Original language	English (US)
Pages (from-to)	144-148
Number of pages	5
Journal	Perception & Psychophysics
Volume	18
Issue number	2
DOIs	https://doi.org/10.3758/BF03204102
State	Published - Mar 1975

All Science Journal Classification (ASJC) codes

Experimental and Cognitive Psychology
Sensory Systems
General Psychology

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10.3758/BF03204102

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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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AB - 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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The assessment of components involved in illusion formation using a long-term decrement procedure

Abstract

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