Results 211 to 220 of about 17,165 (262)
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Critical Flicker Frequencies in Flicker Perimetry
Archives of Ophthalmology, 1968Flicker fields from 270 individuals between 6 and 95 years of age were grouped into nine age ranges, each covering a decade and containing 30 individuals. For each decade, mean critical flicker frequencies were computed for 49 points of the visual field situated on the horizontal, vertical, and oblique meridians from 0° to 60°.
E, Wolf, A M, Gaeta, S E, Geer
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Binocular flicker appears faster than monocular flicker
Journal of the Optical Society of America, 1981Observers adjusted the frequency of an auditory click to match the apparent flicker rate of a sinusoidally modulated visual display. Matches made for binocularly viewed flicker were nearly twice those for monocularly viewed flicker but only at high rates of temporal modulation.
D O, Bowker, M B, Mandler
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Red–green flicker photometry and nonlinearities in the flicker electroretinogram
Journal of the Optical Society of America A, 1993We investigated whether responses from different cone classes are combined before or after the nonlinearity that is responsible for generating nonlinear response components of the flicker electroretinogram (ERG). We measured the nonlinear response of the retina while systematically varying the modulation in the long-wavelength-sensitive and middle ...
Y, Chang, S A, Burns, M R, Kreitz
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Flicker noise in pentodes flicker partition noise
Physica, 1960Abstract The method of approach used in the study of flicker noise in positive grid triodes is applied to pentodes with some modifications. It is demonstrated experimentally that the flicker noise current generated at the cathode of a pentode distributes over the positive electrodes in the ratio of the ac currents.
R.C. Schwantes, A. van der ziel
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Flicker stimulation with chimpanzees
Life Sciences, 1967Abstract Although extensive work has been carried out in experimentally induced epileptiform states (alumina cream, metrazol, etc.) in animals, only man has been known to have idiopathic photosensitive epilepsy. Recent work by Killam et al . (2, 3, 4 and 5) has demonstrated a photo-sensitive response in old world monkeys that may well represent ...
R, Naquet, K F, Killam, J M, Rhodes
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2022
This chapter analyzes and compares the diegetic and symbolic roles of cinema as a motif across both HBO’s Watchmen and DC’s Doomsday Clock. HBO’s Watchmen inserts cinema into the origins of the superhero genre; instead of dating the emergence of the American superhero to Superman’s first appearance in Action Comics #1 (1938), it stretches further back ...
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This chapter analyzes and compares the diegetic and symbolic roles of cinema as a motif across both HBO’s Watchmen and DC’s Doomsday Clock. HBO’s Watchmen inserts cinema into the origins of the superhero genre; instead of dating the emergence of the American superhero to Superman’s first appearance in Action Comics #1 (1938), it stretches further back ...
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CLINICAL FLICKER ELECTRORETINOGRAPHY
Optometry and Vision Science, 1968ABSTRACT The history of the ERG (Electroretinogram) is traced through its first recordings to present times. The origins of the ERG are discussed, leading to the potential application of this technique to clinical optometry.
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Science, 1959
Brown and Forsyth have recently performed a flicker-fusion experiment showing clearly that there is more to flicker than meets the eye. This report presents an analysis of their results which indicates the likelihood that at fusion threshold all but one of the Fourier components of their presentation are imperceptible.
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Brown and Forsyth have recently performed a flicker-fusion experiment showing clearly that there is more to flicker than meets the eye. This report presents an analysis of their results which indicates the likelihood that at fusion threshold all but one of the Fourier components of their presentation are imperceptible.
openaire +2 more sources