| Abstract: | The distribution of evoked rhythmic responses on the surface and in the depths of the retina of the carp (Cyprinus carpio) and tench (Tinca tinca) and the dependence of the amplitude — frequency characteristics of the response on stimulus intensity and duration were investigated by recording the local electroretinogram and unit activity of the ganglion cells. Rhythmic on- and off-responses to light differed in various characteristics, including their distribution between the cellular and synaptic layers of the retina. The frequency, amplitude, and number of waves in the response were found to depend on the parameters of the stimulus. On-, off-, and on — off-ganglion cells were represented in the records. Their spike discharge usually corresponded to a phase angle of the negative half-wave of the rhythmic response of close to  /2. The results of experiments in which conduction along the optic nerve was blocked by cold showed that the system of generation of the rhythmic response in the retina is under the tonic influence of the centers.M. V. Lomonosov Moscow State University. Translated from Neirofiziologiya, Vol. 9, No. 1, pp. 61–68, January–February, 1977. |
