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LUMINOSITY FUNCTIONS OF THE OSCILLATORY POTENTIALS OF THE HUMAN ELECTRORETINOGRAM
Author(s) -
WACHTMEISTER LILLEMOR
Publication year - 1974
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1974.tb00388.x
Subject(s) - scotopic vision , photopic vision , monochromatic color , spectral sensitivity , physics , optics , sensitivity (control systems) , adaptation (eye) , wavelength , retina , electronic engineering , engineering
Monochromatic light at 13 selected points of the spectrum was presented to the eyes of three normal subjects. Spectral sensitivity curves for the slow (a‐ and b‐waves) as well as the rapid (oscillatory) potentials were determined in response to light stimuli delivered in conditions of comparatively (1) strong light adaptation induced by light stimuli (at an interval of 15 sec) and (2) by weak light adaptation induced by light stimuli (at an interval of 2 min). From comparisons of the sensitivity functions obtained it was concluded that while there was a change of retinal sensitivity from predominantly photopic to scotopic type, no variation of the spectral sensitivity of the oscillations was recorded. In photopic as well as scotopic conditions studied, the oscillations revealed two peaks of sensitivity at 472 nm and 551 nm of the spectrum. Thus, the results seem to support earlier suggestions of the oscillatory potentials being related to an interaction by rod and cone activities and the origin of the oscillations being quite separate from that of the a‐ and b‐wave.