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  • Title: Synaptic potentials in cat's lateral geniculate neurons during natural sleep with special reference to paradoxical sleep.
    Author: Fourment A, Hirsch JC.
    Journal: Neurosci Lett; 1980 Feb; 16(2):149-54. PubMed ID: 6302571.
    Abstract:
    Juxtacellular DC recordings from lateral geniculate body (LGB) relay cells were performed in completely undrugged cats during natural sleep. Paradoxical sleep (P) was characterized by a decrease in synaptic (S) potentials and an increase in spike discharge as compared to slow wave sleep. During the P grouped discharges simultaneous with eye movements and cortical waves, a further decrease in S potentials accompanied by an increased cell excitability as indicated by the higher probability to elicit an antidromic spike occurred. The results suggest that the decrease of S potentials in P is not the result of presynaptic inhibition but that most of them reach firing level during the P grouped discharges.
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