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  • Title: Spectral analysis of the electroencephalogram in neonatal rats chronically treated with the NMDA antagonist MK-801.
    Author: Gorter JA, Veerman M, Mirmiran M, Bos NP, Corner MA.
    Journal: Brain Res Dev Brain Res; 1991 Dec 17; 64(1-2):37-41. PubMed ID: 1786646.
    Abstract:
    In order to study the involvement of NMDA-receptor activation in brain development, rat pups were chronically treated with the non-competitive NMDA antagonist MK-801 during the neonatal period. We recorded the cortical EEG at various vigilance states throughout the treatment period. Spectral analysis of the EEG showed reduced power in the delta (delta) frequency range (1.5-4 Hz) during quiet sleep and less power in the theta (theta) range (4-7 Hz) during REM-sleep in MK-801 animals than in controls. No significant differences were found for the total time spent in each of the different vigilance states. We conclude that chronic MK-801 treatment probably causes a developmental retardation in state-related brain activities.
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