Accommodation, Pattern Glare, and Coloured Overlays
نویسندگان
چکیده
منابع مشابه
Accommodation, pattern glare, and coloured overlays.
We manipulated the accommodative response using positive and negative lenses to study any association between symptoms of pattern glare and accommodation. Two groups of eighteen young adults were selected from seventy-eight on the basis (i) that their rate of reading increased by 5% or more with an overlay compared to their rate without it, and (ii) that they reported more than 2 symptoms of pa...
متن کاملColoured overlays, text, and texture.
In four studies children were asked to read aloud a passage of randomly ordered common words with and without a coloured sheet of plastic (overlay) placed upon the page. The children's rate of reading increased with the overlay, for some children more than for others. The children were also asked to undertake a test of texture segmentation in which targets consisting of a structured texture had...
متن کاملBoth coloured overlays and coloured lenses can improve reading fluency, but their optimal chromaticities differ.
Some individuals read more fluently when the text is coloured: i.e., when coloured sheets of plastic (overlays) are placed upon the page, or when coloured lenses are worn. Overlays provide a surface colour whereas lenses mimic a change in the colour of a light source. The neural mechanisms that underlie colour constancy ensure that the chromaticity of overlays and lenses is processed differentl...
متن کاملProlonged use of coloured overlays for classroom reading.
Ninety-three children in a primary school and 59 children in two first-year classes of a secondary school were asked individually to observe a paragraph of random letters arranged to resemble text, and to compare the perceptual effects on its clarity of coloured plastic sheets overlaid on the text. A total of 29 colours were compared using 10 coloured plastic sheets and 19 pairwise combinations...
متن کاملPattern Avoidance in Coloured Permutations
Let Sn be the symmetric group, Cr the cyclic group of order r, and let S (r) n be the wreath product of Sn and Cr; which is the set of all coloured permutations on the symbols 1, 2, . . . , n with colours 1, 2, . . . , r, which is the analogous of the symmetric group when r = 1, and the hyperoctahedral group when r = 2. We prove, for every 2letter coloured pattern φ ∈ S 2 , that the number of φ...
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ژورنال
عنوان ژورنال: Perception
سال: 2012
ISSN: 0301-0066,1468-4233
DOI: 10.1068/p7390