A program for automatic acquisition and processing of electroretinograms obtained in vivo in albino rats

Vennat, Jean-Claude; Besse, G; Sanzelle, S.; Doly, M.; Gaillard, G

doi:10.1016/0165-0270(94)90050-7

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Test flashes were presented for 200 ms each, with an interstimulus-interval of 800 ms. For each single ERG, baseline recording was made for 50 ms prior to stimulus presentation, and poststimulus recording was made for 750 ms following stimulus presentation. Thus, ERG responses to each stimulus presentation were recorded for total of 1000 ms and filtered for 60-Hz noise (Vennat et al, 1994).…”

Section: Electrophysiological Preparation and Proceduresmentioning

confidence: 99%

Cone contributions to the photopic spectral sensitivity of the zebrafish ERG

et al. 1998

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Microspectrophotometry studies show that zebrafish (Danio rerio) possess four cone photopigments. The purpose of this study was to determine the cone contributions to the zebrafish photopic increment threshold spectral-sensitivity function. Electroretinogram (ERG) b-wave responses to monochromatic lights presented on a broadband or chromatic background were obtained. It was found that under the broadband background condition, the zebrafish spectral-sensitivity function showed several peaks that were narrower in sensitivity compared to the cone spectra. The spectral-sensitivity function was modeled with L − M and M − S opponent interactions and nonopponent S- and U-cone mechanisms. Using chromatic adaptation designed to suppress the contribution of the S-cones, a strong U-cone contribution to the spectral-sensitivity function was revealed, and the contributions of the S-cones to the M − S mechanism were reduced. These results show that the b-wave component of the ERG receives input from all four cone types and appears to reflect color opponent mechanisms. Thus, zebrafish may possess the fundamental properties necessary for color vision.

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Section: Electrophysiological Preparation and Proceduresmentioning

confidence: 99%

Cone contributions to the photopic spectral sensitivity of the zebrafish ERG

et al. 1998

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“…The electric signal was collected between an active electrode placed on the cornea and a reference electrode placed on the tongue. After amplification, this signal was processed to minimize background (8).…”

Section: In Vivo Model Of Retinal Ischemia By Ocular Hypertoniamentioning

confidence: 99%

Experimental Electroretinographic Exploration of Retinal Ischemia: Preventive Use of Free Radical Scavengers and Anti-PAF Agents

Cluzel²,

Mt³

et al. 1997

Journal of Ocular Pharmacology and Therapeutics

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Electroretinographic exploration is an effective approach to evaluate retinal function. In order to investigate physiopathological mechanisms and evaluate potentially protective therapies for retinal ischemia, we developed three experimental models: the first two on isolated retina, with ischemia induced by either stopping perfusion or clamping the ophthalmic artery, and the third, in vivo, with ischemia induced by ocular hypertonia. Since free radicals are implicated in the formation of postischemic lesions, we evaluated the protective effects of drugs known to be free radical scavengers and of an immunomediator antagonist, an anti-PAF (platelet activating factor) agent.

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A program for automatic acquisition and processing of electroretinograms obtained in vivo in albino rats

Cited by 2 publications

References 5 publications

Cone contributions to the photopic spectral sensitivity of the zebrafish ERG

Cone contributions to the photopic spectral sensitivity of the zebrafish ERG

Experimental Electroretinographic Exploration of Retinal Ischemia: Preventive Use of Free Radical Scavengers and Anti-PAF Agents

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