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Peer-reviewed veterinary case report

Oscillatory potentials of the slow-sequence multifocal ERG in primates extracted using the Matching Pursuit method.

Journal:
Vision research
Year:
2007
Authors:
Zhou, Wei et al.
Affiliation:
College of Optometry · United States

Abstract

This study used the Matching Pursuit (MP) method, a time-frequency analysis, to identify and characterize oscillatory potentials (OPs) in the primate electroretinogram (ERG). When the slow-sequence mfERG from the macular region of the retina was matched with Gabor functions, OPs were identified in two distinct bands: a high-frequency band peaking around 150 Hz that contributes to early OPs, and a low-frequency band peaking around 80 Hz that contributes to both early and late OPs. Pharmacological blockade and experimental glaucoma studies showed that the high-frequency OPs depend upon sodium-dependent spiking activity of retinal ganglion cells, whereas the low-frequency OPs depend primarily upon non-spiking activity of amacrine cells, and more distal retinal activity.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/17512027/