Visual evoked potentials in the clinically normal dog.

G M Strain; R M Jackson; B L Tedford

doi:10.1111/j.1939-1676.1990.tb00901.x

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Visual evoked potentials in the clinically normal dog.

G M Strain·R M Jackson·B L Tedford

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Abstract

Visual evoked potentials (VEP) in response to flashes of white light were recorded from 15 adult beagles of both sexes to provide a normative data base. Separate recordings were taken by stimulating each eye of every dog. Responses were recorded from a needle electrode placed over the nuchal crest referenced to an electrode just caudal to the eyes. Five positive and negative peaks were present in each VEP; P1, N1, P2, N2, and P3. Peak P2 was the most prominent. Mean (+/- standard deviation [SD]) latencies for peaks P1, N1, P2, N2, and P3 were 14.3 +/- 2.4, 29.2 +/- 2.2, 54.5 +/- 7.4, 78.0 +/- 13.1, and 98.1 +/- 12.6 msec, respectively. Peak-to-peak mean amplitudes ranged from 5.88 to 13.30 microV. Recordings were accomplished without sedation, anesthesia, or mydriatic drugs.

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Animals Dogs Electrodes Electroretinography Evoked Potentials, Visual Female Male Reproducibility of Results Journal Article Research Support, Non-U.S. Gov't

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G M Strain, R M Jackson, B L Tedford. Visual evoked potentials in the clinically normal dog.. https://doi.org/10.1111/j.1939-1676.1990.tb00901.x

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