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Metcalf, Richard M. – 1967
Although there has been previous research concerned with image size, brightness, and contrast in projection standards, the work has lacked careful conceptualization. In this study, size was measured in terms of the visual angle subtended by the material, brightness was stated in foot-lamberts, and contrast was defined as the ratio of the…
Descriptors: Equipment Standards, Instructional Materials, Projection Equipment, Visual Discrimination
Pancoast, Ferendino, Grafton and Skeels, Architects, Miami, FL. – 1964
Proceedings of a seminar on the present status of vision engineering and the possible effects on criteria for school planning. A discussion by Dr. H. Richard Blackwell on vision engineering is included. Topics of discussion include--(1) broad aspects of the effect of light upon sight, (2) lighting variables and task visibility, (3) lighting…
Descriptors: Criteria, Engineering, Lighting, School Planning
Blackwell, H. Richard – Illuminating Engineering, 1963
The results of all basic measurements and calculations of reflected glare for different lighting materials and conditions are presented in a series of tables and charts. All basic concepts of a quantitative method for evaluating the visual significance of reflected glare are identified in relationship to different types of visual performance. The…
Descriptors: Glare, Lighting, Measurement Techniques, Task Performance
Costello, John A.; Molina, Carlos – Journal of Physical Education and Recreation, 1975
Descriptors: Athletic Coaches, Athletics, Injuries, Professional Training

Lappin, Joseph S.; And Others – Journal of Experimental Psychology: Human Perception and Performance, 1975
Is the perception of velocity determined by the prior discrimination of spatial and temporal distances? Two experiments sought to answer this question by comparing the discriminabilities of moving stimuli varied in spatial extent, temporal duration, or in redundant combinations of both variables. (Editor)
Descriptors: Experimental Psychology, Perception, Psychological Studies, Research Methodology

Timko, Henry G. – Journal of Educational Research, 1977
A study of eighty Canadian kindergarten children showed that discrimination of similar letters was more difficult than distinctive letter discrimination, irrespective of training format or mode of testing. (MJB)
Descriptors: Cognitive Development, Discrimination Learning, Early Childhood Education, Letters (Alphabet)

Ramey, Craig T.; Smith, Barbara J. – American Journal of Mental Deficiency, 1977
Forty-seven infants at-risk for mental retardation were divided into a group that received early day-care intervention and a matched control group that did not. (Author)
Descriptors: Economically Disadvantaged, Infants, Intellectual Development, Intervention

Williams, Tannis MacBeth; And Others – Developmental Psychology, 1977
Descriptors: Age Differences, Classification, Perceptual Development, Preschool Children
Robinson, Gregory L.; Miles, James – Exceptional Child, 1987
Among 40 reading disabled volunteers (ages 9-74), subjects with high scotopic sensitivity demonstrated significantly better performance on visual processing tasks when they used colored overlays which maximized visual efficiency, compared with task performance under conditions using overlays of a random color or no color. (JW)
Descriptors: Reading Difficulties, Reading Processes, Reading Skills, Visual Discrimination

Wilson, Elizabeth; Ng, Sik Hung – Sex Roles, 1988
Sex specific biases in visual images was explored. When photographs of male and female faces were presented in a deliberately ambiguous manner, university students overreported the number of male faces and underreported female faces. The results are predictable with the variation of generic sentences shown with the photographs. (VM)
Descriptors: Ambiguity, Females, Imagery, Males

Maurer, Daphne; and Adams, Russell J. – Journal of Experimental Child Psychology, 1987
Two different methods which minimize achromatic cues were used to test the ability of one-month-olds to discriminate gray from broadband blue. Test data imply an improvement between birth and one month of age in the discrimination of gray from broadband blue. Possible physiological changes underlying this improvement are discussed. (Author/RWB)
Descriptors: Color, Dimensional Preference, Infants, Visual Discrimination

Irvin, Judith L. – Reading Teacher, 1986
Concludes that the Bieger Test is thorough in the diagnosis of visual discrimination deficits. (FL)
Descriptors: Elementary Education, Reading Instruction, Test Reliability, Test Validity

Lewkowicz, David J. – Developmental Psychology, 1985
Three studies were designed to examine infants' bisensory responsiveness to temporally modulated stimulation by varying frequency while keeping intensity constant, by varying both frequency and intensity together, and by varying intensity while keeping temporal frequency constant. Findings indicate that sound influences visual preferences via…
Descriptors: Auditory Discrimination, Auditory Stimuli, Infants, Responses

Corballis, Michael C.; And Others – Journal of Child Psychology and Psychiatry and Allied Disciplines, 1985
Reports a study in which the letters F, G, and K were presented in normal and backward versions, in varying angular orientations, in left and right visual fields. (Author/NH)
Descriptors: Children, Comparative Analysis, Letters (Alphabet), Perceptual Development

Charlop, Marjorie H.; Carlson, Jerry – Journal of Experimental Child Psychology, 1983
Reversal and nonreversal shifts in 19 2- to 14-year-old autistic children were studied. Results indicated that the older autistic children did better on reversal shifts than did younger children, who performed better on nonreversal shifts. Findings were consistent with those for normal children. (Author)
Descriptors: Age Differences, Autism, Children, Cognitive Ability