MA-ergic effect of sensory stimulation on the formation of interrelations in visual structures

The presented work is devoted to a comparative analysis of the influence of monoaminoergic systems (noradrenergic, serotonergic) on the formation of interactions between the structures of the visual analyzer (superior colliculus, lateral geniculate body, visual cortex) against the background of sensory stimulation. Rabbits were used as objects of experimental studies. During the recording of electrical activity in the structures of the vision analyzer, electrophysiological research methods were used, the analysis of the obtained results was carried out by means of a computer software package. From the analysis of the obtained materials of electrophysiological research, it became clear that during sensory stimulation, the active involvement of visual structures in the processing of visual information is clearly manifested, as a result of which a specific resonance effect (mastery of the rhythm) occurs according to the frequency of sensory stimulation. The maximum frequencies of the spectral character of neuromodulatory centers are located in the theta wave range, which corresponds to the frequency of sensory stimulation. Also, rhythmic sensory stimulation leads to an increase in coherent connections between structures. The MA-ergic effect of potential synchronization on the electroretinogram is ambiguous.  While electrical stimulation of nR neurons increases the effects of sensory activation, stimulation of LC produces the opposite effect.