[Change in the concentration of RNA in the cytoplasm of cells of the inferior colliculus in cats during monaural and binaural stimulation].

The method of cytospectrophotometry of the gallocyanin-chromatium stained sections was used to show that the 2-hour monaural and 1.5-hour binaural stimulation with rhythmical noise signals result in a pronounced increase in cytoplasmatic RNA content per cell in the principal and large multipolar neurons. The increase in cytoplasmatic RNA amount in the principal cells both from ipsi- and contralateral central nuclei of the inferior colliculus with monaural and binaural stimulations allows to suggest a uniform distribution of the binaurally converging connection from the lower auditory nuclei to the principal cells. The increase in cytoplasmatic RNA in the large multipolar cells of the contralateral central nucleus following monaural stimulation shows predominant contralateral projections to these cells. A conclusion is made on patterns of binaurally converging connections on the principal and large multipolar cells of the central nucleus of the inferior colliculus.