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  • Title: [Habituation of direct cortical responses in the cat].
    Author: Koreli AG.
    Journal: Neirofiziologiia; 1981; 13(3):241-6. PubMed ID: 6269007.
    Abstract:
    Acute experiments on cats under barbiturate anesthesia were made to study a gradual decrease of direct cortical responses in different cortical areas. It is found that during repetitive stimulation of the surface of association cortical areas the direct responses undergo all the changes characteristic of habituation. In the primary projection cortical areas the direct responses were stable and no habituation was observed. Reasons for differences in the changes of direct responses in different cortical areas are discussed. In a series of experiments an isolated cortical slab was prepared in primary cortical area. Direct responses habituated under such conditions in a way similar to the habituation in the association cortical areas. It is suggested that primary projecting areas receive strong ascending activating influences from subcortical structures which act as a response sensitizer.
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