کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4035627 | 1263538 | 2007 | 16 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Oscillatory potentials of the slow-sequence multifocal ERG in primates extracted using the Matching Pursuit method Oscillatory potentials of the slow-sequence multifocal ERG in primates extracted using the Matching Pursuit method](/preview/png/4035627.png)
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.
Journal: Vision Research - Volume 47, Issue 15, July 2007, Pages 2021–2036