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Critical flicker fusion frequency in demyelinating and ischemic optic neuropathies
International Ophthalmology, 2017Critical flicker fusion (CFF) frequency is a well-studied test for evaluating demyelinating optic neuritis (ON). Its use in evaluating other optic neuropathies is not well established. The purpose of this study was to compare CFF in ON and non-arteritic anterior ischemic optic neuropathy (NAION).We performed a retrospective review to compare multiple ...
Matthew T. Young +2 more
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An ecological correlate of critical flicker-fusion frequencies for someAnolis lizards
Vision Research, 1974Abstract The maximum critical flicker-fusion frequency (CFF) was determined for seven species of anoline lizards. The congeners showed a wide range of CFF values from 26 to 42. These values correlated with the general level of insolation in each species' microhabitat such that the brighter the habitat, the higher the CFF.
T A, Jenssen, B, Swenson
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Longitudinal changes in critical flicker fusion frequency: an indicator of human workload
Ergonomics, 2005The aim of the study was to verify a hypothesis that critical flicker fusion frequency (CFFF) is season-related because of changes in the intensity and duration of sunlight. CFFF has a wide application in different fields, generally as an indicator of human workload.
Anna, Luczak, Andrzej, Sobolewski
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Critical flicker fusion frequency measurement through a chamber porthole
Diving and Hyperbaric Medicine JournalThe critical flicker fusion frequency (cFFF) is a non-invasive measure of central nervous system function and cortical arousal, increasingly used in diving and hyperbaric medicine to assess the effects of breathing gases under pressure. This feasibility study aimed to evaluate whether cFFF can be reliably measured through the porthole of a hyperbaric ...
Jochen D, Schipke +3 more
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The Relationship Between Critical Flicker Fusion Frequency (CFFF) and Temperamenta Characteristics
International Journal of Occupational Safety and Ergonomics, 2000The analysis in this paper was based on data obtained from 80 male participants, aged 29-65. Critical Flicker Fusion Frequency (CFFF) was measured using the Flicker Test. The Formal Characteristics of Behaviour Temperament Inventory (FCB-TI) by Strelau and Zawadzki (1993) was used for temperamental characteristics.
A, Luczak, A, Sobolewski
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Critical Flicker Fusion Frequency: Relation to Resting Systolic Blood Pressure
Optometry and Vision Science, 2004ABSTRACT: Objective. Past studies have shown that a number of factors, both acute and chronic, influence individual differences in critical flicker fusion frequency (CFF). In this study, we assessed whether CFF co‐varied with resting systolic blood pressure (SBP).
Audrey H, Gutherie, Billy R, Hammond
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Critical flicker fusion frequency in age‐related macular degeneration
Acta Ophthalmologica, 2008Abstract Purpose To discuss the influence of AMD on critical flicker fusion frequency (CFF) Methods CFF was measured centrally for red, green and blue signal and in 10° excentricity with a red signal. 33 patients with non exsudative AMD and a visual acuity (VA) of 20/100‐20/20, 12 patients with exsudative AMD (VA: 20/100‐20/25) and 45 age‐matched ...
MM MAIER +3 more
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Critical flicker fusion frequency in early chloroquine retinopathy.
Canadian journal of ophthalmology. Journal canadien d'ophtalmologie, 1983Since increasing numbers of patients with connective tissue diseases are taking chloroquine and its derivatives, there is an urgent need for a simple, reasonably fast method of screening for toxic effects on the retina. Measurement of the critical flicker fusion frequency is one technique for assessing retinal function. Its screening value was assessed
A R, Al Khamis, M, Easterbrook
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Acta psychiatrica Belgica, 1982
As far back as the second century, Ptolemy reported the apparent immobility of wheel radius at a certain speed. The psychophysical laws of this flicker fusion phenomenon related to the frequency of the light stimulus were established in 1834-1835 by the Englishman Talbot and by the Belgian Plateau, whose thesis in Liège is described as a landmark in ...
D P, Bobon +5 more
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As far back as the second century, Ptolemy reported the apparent immobility of wheel radius at a certain speed. The psychophysical laws of this flicker fusion phenomenon related to the frequency of the light stimulus were established in 1834-1835 by the Englishman Talbot and by the Belgian Plateau, whose thesis in Liège is described as a landmark in ...
D P, Bobon +5 more
openaire +1 more source