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Howard, Mary F.; Reggia, James A. – Brain and Cognition, 2007
The spatial frequency hypothesis contends that performance differences between the hemispheres on various visuospatial tasks are attributable to lateralized processing of the spatial frequency content of visual stimuli. Hellige has proposed that such lateralization could arise during infant development from the earlier maturation of the right…
Descriptors: Biology, Visual Stimuli, Child Development, Brain Hemisphere Functions
Blackmore, Tim – Bulletin of Science, Technology & Society, 2007
In the late 20th and early 21st centuries, increased computing power has made possible extraordinary leaps in film special effects. This article argues that special effects developed since the beginning of digital animation, when coupled with standard editing room techniques (jump cuts, cutaways), have brought us to an era where the eye cannot…
Descriptors: Human Body, Films, Multimedia Materials, Visual Stimuli
Purves, Dale; Williams, S. Mark; Nundy, Surajit; Lotto, R. Beau – Psychological Review, 2004
The relationship between luminance (i.e., the photometric intensity of light) and its perception (i.e., sensations of lightness or brightness) has long been a puzzle. In addition to the mystery of why these perceptual qualities do not scale with luminance in any simple way, "illusions" such as simultaneous brightness contrast, Mach bands,…
Descriptors: Light, Probability, Vision, Visual Perception
Scientific American, Inc., New York, NY. – 1986
Understanding vision is not a simple task. Nevertheless, a great deal is known about vision, more than about any of our other senses. The articles collected in this volume were chosen and organized with the intention of providing a survey of a number of different areas of vision research. Three major sections focus on the general categories of…
Descriptors: Anatomy, Animals, Entomology, Eyes
Leek, E. Charles; Reppa, Irene; Arguin, Martin – Journal of Experimental Psychology: Human Perception and Performance, 2005
This article examines how the human visual system represents the shapes of 3-dimensional (3D) objects. One long-standing hypothesis is that object shapes are represented in terms of volumetric component parts and their spatial configuration. This hypothesis is examined in 3 experiments using a whole-part matching paradigm in which participants…
Descriptors: Vision, Experiments, Cognitive Processes, Visual Perception
Vaughan, Christopher – Science News, 1988
Reviews research done on the nature of vision from a neurologic perspective. Proposes a multiplex filter model to explain patterns in the signals transmitted to the brain from the retina. Describes experiments done to test the model. (CW)
Descriptors: College Science, Eyes, Higher Education, Models

Morse, M. T. – Journal of Visual Impairment and Blindness, 1992
This article describes addition of a "learn a routine" procedure to functional visual assessments of children with severe neurological and physical disabilities. The procedure capitalizes on the child's interest of the moment and provides information on the child's patterns of responses, ability to accommodate to variations of a stimulus, and…
Descriptors: Children, Evaluation Methods, Multiple Disabilities, Neurological Impairments