REACTION OF RETINOGRAM OF DARK-ADAPTED IN TACT CARE CARPIO-CYPRINUS LTO A CHANGE OF THE WAVELENGTH OF MONOCHROMATIC LIGHT

Electroretinogram b-wave was studied in intact tarp using instantaneou s substitution of monochromatic stimulus for another one in the range of 404-681 nm. It was shown that the amplitude of the b-wave as a func tion of the wavelength was good approximated by the spectrum of a scot opic pigment (porphiropsin) with the absorbtion maximum near 530 nm. T he amplitude of the b-wave recorded during alternation of different mo nochromatic stimuli was determined only by their intensity differences and the level of previous light adaptation.