Adapto-Electroretinogram (AERG) in Monochromatic Light in Man

Alfieri, R; Sole, P

doi:10.1159/000388637

Cited by 3 publications

(1 citation statement)

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“…In several experiments designed to control the state of adaption, oscillatory potentials in response to single flashes of light were obtained (De Molfetta et al 1968; Jacobson et al 1968; suggesting their photopic nature. The results of experiments utilizing coloured light stimuli (Alfieri & Sole 1968) and using selective adaptation (Heck & Rendahl 1957;Rendahl 1958Rendahl , 1964) indicated a close relation of the oscillations with the photopic system. Further, the fact that, in colour blind individuals no oscillations can be recorded (Heck & Rendahl 1957; ) is also in line with these conclusions.…”

Section: Mattltias Korth and Viktor Reimanmentioning

confidence: 99%

Stimulus Alternation and Fast Retinal Potentials: Photopic and Scotopic Contributions*

Korth

Reiman

1979

Acta Ophthalmologica

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Human retinal oscillatory potentials in response to an alternating checker-board pattern stimulus were studied in two subjects over an intensity range of 7.5 log units. Under scotopic conditions, two wavelets (S1 and S2) could be recorded. At an intensity of 1.9 photopic log Td four high frequency oscillations (O1--O4) were noticed and a discontinuity was observed in the corresponding luminance curve of the b-wave together with a sudden decrease in the magnitude of the standard deviation of the amplitude measures. The oscillations were noticed only on the ascending slope of the b-wave. With increasing stimulus intensity, their latency decreased at a slower rate than that of the b-wave and their number decreased. Each wavelet had an amplitude maximum at a certain stimulus intensity level. It was suggested that O1--O4 were generated by the activation of the photopic system and that S1 and S2 were of scotopic origin.

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