PHYSL405 Lecture Notes - Lecture 14: Diabetic Retinopathy, Amacrine Cell, White Bass
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Isolating the oscillatory potentials from the bright flash erg response of the human eye (a) by applying a digital filter (b). An fft procedure was applied to the isolated oscillatory potential in order to obtain the power spectrum (c) If change amplifier from 1-1000 bandpass (tune freq of radio to pick up. Dr = diabetic retinopathy less oscillations specifics); band = band; pass = what can pass. 100 hz = high pass and 1000hz = low pass. Slower than 100 = banded from entering amplifier no a or b waves b/c too slow. With diabetes (beginning of dr will have selective decrease in ops); affect initially, the function of amacrine cells (shown to be able to oscillate at specific freq) Oscillatory potentials of isolated wide-field amacrine cells in the white bass retina. Oscillatory membrane potentials (omps) were elicited by depolarizing current steps of increasing amplitude obtained in whole-cell recordings from isolated amacrine cells that were maintained in culture.