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Articles
Mueller-Lyer Illusion: Effect of Age, Lightness Contrast, and Hue
1 Department of Psychology, University of Georgia, Athens 30601
Mueller-Lyer figures produced by lightness contrast (white on black) and by hue contrast in the absence of lightness contrast (red, yellow, green, or blue on gray) were presented to subjects aged nine to adult. Contrary to Piagetian expectations, the illusion magnitudes resulting from the colored figures did not decline with age.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)