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Peer reviewedKessen, William; Bornstein, Marc H. – Journal of Experimental Child Psychology, 1978
Descriptors: Color, Contrast, Infants, Light
Download full textMerriam, Mylon – 1970
This paper describes the physiological "eye noise" effect of line contrast in maps and considers the effect of line contrast on the direct picture of terrain surface as produced by shaded relief. An attempt is made to describe map reading in its two major steps: 1) the enrichment of the brain image resulting from scanning the map sheet,…
Descriptors: Cartography, Contrast, Design Requirements, Geography
Specific Reading Disability: Differences in Contrast Sensitivity as a Function of Spatial Frequency.
Peer reviewedLovegrove, W. J.; And Others – Science, 1980
Contrast thresholds for sine-wave gratings of spatial frequencies of 2, 4, 12, and 16 cycles per degree were determined for normal and disabled readers at a range of stimulus durations. The differences in sensitivity pattern across spatial frequencies was greatest at stimulus durations approximately equal to fixation durations during reading.…
Descriptors: Contrast, Disabilities, Higher Education, Reading Diagnosis
Peer reviewedLockhead, G. R.; Crist, W. B. – Journal of Educational Psychology, 1980
Small graphic changes made in normal letters of the alphabet changed the similarity relations among those letters. Children and adults classified letters of this distinctive font faster and with fewer errors than they did normal letters. Relations between letters in the stimulus set determined how difficult any particular letter was to classify.…
Descriptors: Contrast, Difficulty Level, Higher Education, Letters (Alphabet)
Bretz, Rudy – Educational Broadcasting, 1974
One method of computing the optimum size of lettering for slides and TV title cards. (Author)
Descriptors: Audiovisual Aids, Contrast, Educational Media, Illustrations
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 reviewedLivingstone, Margaret; Hubel, David – Science, 1988
Summarizes the anatomical, physiological, and psychological evidence related to the primate visual system. States that comparison of perceptual abilities with the electrophysiological properties of neurons may help deduce functions of visual areas. (RT)
Descriptors: Anatomy, Biological Sciences, Biology, Color
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
