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  • Title: [The interaction of transcallosal and ascending excitation flows in the visual cortex of the cat].
    Author: Bozhko GT, Shramm VA, Bianki VL.
    Journal: Fiziol Zh SSSR Im I M Sechenova; 1989 Sep; 75(9):1184-93. PubMed ID: 2599129.
    Abstract:
    The conformity of interhemispheric interaction in visual cortex were studied by means of EPs recordings in 10 immobilized cats under conditions of different time combinations of transcallosal and monocular stimulation of contra- or ipsilateral eyes. Phasic changes of the depression effects under transcallosal conditioning of facilitating effects under conditions of the model interaction similar to natural transcallosal interrelations, occurred in photostimulation of contralateral eye. Whereas the ipsilateral eye stimulation only depressed the time interaction under these conditions. The findings are discussed in terms of morphological, neurophysiological and other research data on transcallosal interhemispheric relations in the cat visual cortex. The 15-25-ms interval between heteromodal stimuli under these research conditions seem to correspond to natural conditions of transcallosal interhemispheric relations which, in binocular vision, are dynamically and topographically organized processes of excitation and inhibition.
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