[Vision in the edible snail. The morphology and total electrical activity of the retina]
[Article in
Russian]
- PMID: 1336285
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[Vision in the edible snail. The morphology and total electrical activity of the retina]
[Article in
Russian]
Zh Vyssh Nerv Deiat Im I P Pavlova.
1992 Sep-Oct.
Abstract
Recording of the integrative electrical activity of the retina of the snail and electron microscopic study of its eye have shown the following. The electrical activity of the photoreceptors is a source of the retinogram (ERG) of the snail. ERG reaction form is characterized by two phases of a response: the initial spike and the following slow fading. For each given value of the photometric brightness of a light signal there exists a low limit of its length, beginning from which the ERG reaction of the snail assumes the form described. The value of the ERG response is a logarithmic function of brightness of the light stimulus.
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