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Contrast sensitivity functions and specific reading disability
Neuropsychologia, 1982Contrast sensitivity functions for normal and specifically disabled readers were measured in two experiments. Each study showed that specifically disabled readers and controls differ in the pattern of relative sensitivity across spatial frequencies. Both studies provide evidence of differences between normal and disabled readers on measures of visual ...
Lovegrove, William +5 more
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Correlation between Contrast Sensitivity and Modulation Transfer Functions
Optometry and Vision Science, 2021SIGNIFICANCE Previous studies found no correlation between visual acuity and optical quality in a population of young subjects with good vision. Using sinusoidal gratings, we systematically investigate the correlation between contrast sensitivity and optical quality as a function of spatial frequency.
Charles E, Leroux +4 more
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Magnocellular Channel Subserves the Human Contrast-Sensitivity Function
Perception, 2005There is evidence that the human contrast-sensitivity function (CSF) is mediated by the spatiotemporal characteristics of magno and parvo neurons early in the visual pathway. In this study we use a measure of contrast gain derived from simple reaction times, to investigate the neural substrates of suprathreshold performance.
Plainis, Sotiris, Murray, Ian J.
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Practical applications of the contrast sensitivity function
Ophthalmic and Physiological Optics, 1983Abstract The contrast sensitivity function, as a statement of visual capabilities over a wide range of object sizes, has proved to be a valuable tool in the study of visual mechanisms. This paper examines the more clinical applications of the function which may be of interest to practising optometrists.
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Cross-species correspondence of spatial contrast sensitivity functions
Behavioural Brain Research, 1981Spatial contrast sensitivity functions (CSFs) have been obtained for at least 9 species, including man. In the present paper, the shapes and octave band widths of these functions are compared. For most species, the shape of the CSF was an inverted-U, and the full width at half amplitude of the CSFs varied less than one octave.
D J, Uhlrich, E A, Essock, S, Lehmkuhle
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Contrast sensitivity-luminance function in aging
Annual Meeting Optical Society of America, 1987We have previously reported (ARVO, 1987) that senile miosis cannot account for age-related deficits in spatial contrast sensitivity over a three-log unit range of luminance. Although the participants were free from significant media opacity, the possibility remains that their deficits could be due to differences in retinal illuminance between young and
Michael E. Sloane, Cynthia Owsley
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Contrast Sensitivity Function as a Screening Test
Optometry and Vision Science, 1986Currently, there is intense clinical, commercial, and academic interest in the potential value of the contrast sensitivity function (CSF) for detecting eye disease. This paper contains an evaluation of the CSF as a screening test. Questions are raised concerning its scoring, accuracy, reliability, and robustness in screening situations.
G E, Legge, G S, Rubin
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Modeling the contrast-sensitivity functions of older adults
Journal of the Optical Society of America A, 1993To determine whether a parabolic template is a good description of the contrast-sensitivity functions (CSF's) exhibited by older adults, the curve-fitting method of Pelli et al. [J. Opt. Soc. Am. A 3(13), P56 (1986)] was applied to contrast-sensitivity data from 100 older subjects (ages 53-85 years).
A M, Rohaly, C, Owsley
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Contrast sensitivity function of the infant visual system
Vision Research, 1976Abstract The response of the human infant visual system to sinewave gratings of various spatial frequencies was measured. The contrast sensitivity functions obtained are an estimate of the spatial information available to the infant. Evidence for lateral inhibitory processing was found.
M S, Banks, P, Salapatek
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Reliabilities of Alternate Measures of Contrast Sensitivity Functions
Optometry and Vision Science, 1988In four studies, the comparability of several measures of contrast sensitivity functions (CSF's) as well as their individual test-retest reliabilities were determined with observers drawn from a college population. The relation between CSF scores obtained by different tests or by different psychophysical procedures with the same test was consistently ...
G M, Long, J P, Tuck
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