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  • Title: [A spectral-correlational analysis of the EEG of the neocortex in the rabbit in a state of thirst].
    Author: Malikova AK, Ponomarev VN.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1990; 40(1):108-18. PubMed ID: 2162585.
    Abstract:
    Summate electrical activity of the rabbit neocortex during formation of drinking excitation was studied by means of mathematical analysis. It is shown that the change of the electrical activity depends on the level of drinking excitability created by various duration of water deprivation (24-48 h) and is expressed in a generalized lowering of potentials amplitude without frequency change. Spectro-correlative EEG analysis showed that lowering of spectrum power took place within the whole analyzed frequencies range. Besides, an increase took place of interconnections of the cortical electrical processes, estimated by coherence function. It may by suggested that the manifested reconstruction of spectro-correlative characteristics of the neocortical biopotentials reflects a formation of motivational excitation establishing optimal level of cortex functioning.
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