Results 271 to 280 of about 1,191,394 (309)

Visual Reaction Time in Normal and Handicapped Children

Perceptual and Motor Skills, 1969
Two groups of children, 6 trainable mental retardates and 6 normals, matched for MA, were tested on a simple reaction time task, using onset of a light. Support for the hypothesized RT difference in favor of the normals was obtained. The study confirms data from older retarded groups.
A, Bonsett, D, Ross, C, Kelly
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Effects of Acute Exercise on Visual Reaction Time

International Journal of Sports Medicine, 2008
We examined the effects of acute exercise on reaction time to visual stimuli presented in the central portion and periphery of the visual field. Twelve participants performed reaction time tasks at rest and during cycling at 65 % peak oxygen uptake in two visual conditions. We used circular black-and-white checkerboard patterns as visual stimuli.
S, Ando, M, Kokubu, T, Kimura, T, Moritani, M, Araki   +4 more
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Visual Search, Reaction Time, and Cognitive Ability

Perceptual and Motor Skills, 1998
The contributions of visual search to reaction time and cognitive ability were investigated with 45 subjects. Visual search was assessed via eye movements. The electrooculogram was recorded while a subject located letters arranged in a large display. Reaction time was obtained for a search task. A reasoning and a space scale served to assess cognitive
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Laws of the simple visual reaction time.

Psychological Review, 1972
Fourteen studies from the literature on the reaction time (RT) to a flash of light provided sufficient methodological detail and data to allow for a quantitative analysis of the effects of the following selected variables: luminance, duration, size of stimulus, response to onset versus termination of the signal, and monocular versus binocular viewing ...
W H, Teichner, M J, Krebs
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Reaction Time and Visual Brightness: Within-Subject Correlations

Perceptual and Motor Skills, 1979
An experiment was conducted to compare visual reaction time and visual brightness within the same subjects. Simple reaction times and magnitude estimates of brightness were obtained in response to 1000-msec. flashes of 60.7, 67.5, 76.4, 85.1, and 93.4 dB re 10−10L white light.
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Visual Simple Reaction Time in Cyanotic Heart Disease

Archives of Pediatrics & Adolescent Medicine, 1967
CHILDREN with acquired or congenital cerebral defects accompanied by obvious motor impairment, such as cerebral palsy, have slower performance speed by virtue of their neurologic damage. Prolonged, severe hypoxia of the central nervous system has been shown to lead to profound physiologic and psychologic changes in the organism.
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Average evoked potentials and reaction times to visual stimuli

Electroencephalography and Clinical Neurophysiology, 1966
EEG relation to average evoked potentials and human reaction time to visual stimuli for trials with and without ...
Donchin, Emanuel, Lindsley, Donald B.
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Peripheral Area-Intensity Interaction in Scotopic Visual Reaction Time

Optometry and Vision Science, 1977
Two observers performed simple reaction-time responses to peripheral stimuli of varying intensity (-2.5 to +1.0 log td) and angular subtense (10 to 210 min). The area-intensity combinations that produced each of three scotopic reaction-time criteria were calculated.
J D, Edmonds, W O, Dwyer
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Visual reaction time of cats to different spatial frequencies

Visual Neuroscience, 1990
AbstractIf physiological mechanisms similar to cat Y and X cells explain faster detection of low spatial frequencies by humans, then cats should show the same effect. We have tested this prediction by determining the visual reaction time of cats over a range of spatial frequencies and contrasts by training them to respond quickly when a vertical sine ...
B E, Aiken, M S, Loop
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Visual parameters impacting reaction times on smartwatches

Proceedings of the 18th International Conference on Human-Computer Interaction with Mobile Devices and Services, 2016
As a new generation of smartwatches enters the market, one common use is for displaying information such as notifications. While some content might warrant immediately interrupting a user, there is also information that might be important to display yet less urgent.
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