Comparison of Rat Cone ERG Elicited by a Pulse Flicker and Sine-Wave Modulated Light Stimuli
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منابع مشابه
Post-photoreceptoral activity dominates primate photopic 32-Hz ERG for sine-, square-, and pulsed stimuli.
PURPOSE To evaluate the relative contributions of photoreceptors and postphotoreceptoral activity to the primate 32-Hz flicker electroretinogram (ERG) elicited by sine-wave, square-wave, and pulse stimuli. METHODS Flicker 32-Hz ERGs were evoked from four adult rhesus (Macaca mulatta) monkeys using sine-wave, square-wave, and 4-ms pulse trains and xenon photostrobe flicker stimuli. All stimuli...
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The electroretinogram (ERG) of hemeralopic Alaskan malamute dogs contains only rod components. There is absence of the photopic b-wave which is normally elicited with red light stimuli during dark adaptation and, using flicker stimulation, only the first or rod branch of the flicker fusion response curve is present. At high stimulus intensity levels, the flicker response of hemeralopes is absen...
متن کاملON-pathway dysfunction and timing properties of the flicker ERG in carriers of X-linked retinitis pigmentosa.
PURPOSE Carriers of X-linked retinitis pigmentosa (XLRP) frequently show prolonged implicit times of the flicker electroretinogram (ERG). This study tested the hypothesis that a preferential response attenuation within the cone depolarizing (ON) bipolar cell (DBC) pathway is a major contributing factor. METHODS Light-adapted, full-field ERGs were recorded from 10 XLRP carriers and 12 visually...
متن کاملPrimate photopic sine-wave flicker ERG: vector modeling analysis of component origins using glutamate analogs.
PURPOSE To study how the photoreceptoral and postreceptoral ON- and OFF-components contribute to the photopic sine-wave flicker ERG in the monkey by isolating the components with glutamate analogs. METHODS Monkey photopic flicker ERGs were elicited with sine wave stimuli (mean luminance, 2.66 log cd/m(2); 80% modulation depth, on a 40 cd/m(2) white background) and were recorded for stimulus f...
متن کاملFlicker ERG responses to stimuli parametrically modulated in color space.
PURPOSE To develop methods for recording human electroretinogram (ERG) responses to stimuli that modulate different classes of cones in various ratios, to draw inferences about the combination of cone signal in early retinal processing. METHODS Subjects viewed large-field temporal modulations presented on a computer-controlled color monitor. A flicker photometric paradigm was used to equate t...
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تاریخ انتشار 2018