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Peer reviewedWeintraub, Daniel J.; Cooper, Lynn A. – Developmental Psychology, 1972
Testing Pollack's hypothesis that decreases in effective contour contrast (resulting from a decrease in receptor sensitivity with age or from a change in actual stimulus contrast) lead to decreases in illusion magnitude. Conclusions are questioned by Sjostrom and Pollack (PS 501 740). (Author/MB)
Descriptors: Age Differences, Cognitive Processes, Contrast, Data Analysis
Peer reviewedBadcock, David; Lovegrove, William – Journal of Experimental Psychology: Human Perception and Performance, 1981
The effects of stimulus duration and contrast on duration of visible persistence as a function of spatial frequency were investigated in normal and specific-reading-disabled children. Results suggest that disabled readers have different contrast processing at low and high spatial frequencies and indicate differences between readers in basic visual…
Descriptors: Contrast, Males, Neurological Organization, Reading Difficulties
Peer reviewedLaws, Glynis; And Others – Language and Cognitive Processes, 1995
Investigates the influence of linguistic structure on non-linguistic cognition by comparing Russian and English behavior on tasks involving the color blue. Russians, who differentiate this region into "dark blue" and "light blue," were expected to separate blues more often than English subjects for whom the colors belong to one lexical category.…
Descriptors: Analysis of Variance, Cognitive Processes, College Students, Color
