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Download full textAznar-Casanova, J. Antonio; Quevedo, Lluisa; Sinnett, Scott – Psicologica: International Journal of Methodology and Experimental Psychology, 2005
Dynamic Visual Acuity (DVA) can be measured from two types of equivalently considered movement referred to as drifting-motion and displacement-motion. Displacement motion can be best described as the horizontal displacement of a stimulus, thus implying pursuit eye movements, and involves moving the stimulus from the fixation point of gaze towards…
Descriptors: Eye Movements, Visual Acuity, Motion, Human Body
Peer reviewedKnowlton, Marie; Lee, Inkyung – RE:view, 1995
This article addresses issues of orientation and mobility for students with visual impairments, including the perception of motion, visual mechanisms of binocular coordination, perception of impending collision, and body movement to avoid collision. Emphasis is on the role of binocular coordination ability and acuity. These concepts were evaluated…
Descriptors: Children, Motion, Perception, Perceptual Motor Coordination
Gawryszewski, Luiz G.; Carreiro, Luiz Renato R.; Magalhaes, Fabio V. – Psicologica: International Journal of Methodology and Experimental Psychology, 2005
A non-informative cue (C) elicits an inhibition of manual reaction time (MRT) to a visual target (T). We report an experiment to examine if the spatial distribution of this inhibitory effect follows Polar or Cartesian coordinate systems. C appeared at one out of 8 isoeccentric (7[degrees]) positions, the C-T angular distances (in polar…
Descriptors: Stimuli, Reaction Time, Mathematics Activities, Cues
