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Updated: Apr 28, 2026

Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice
Published on: August 2, 2017
Sleep postures and power spectrum analysis of the EEG of the rat
J Tromp1, M Lahaije, A Nijssen
1Department of Psychology, University of Amsterdam, Weesperplein 8, 1018 XA Amsterdam, Netherlands; Department of Pharmacology, Free University, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands.
Abstract:
An analysis of the relation between sleep postures and EEG power spectrum of young, adult and old male rats was performed. Three postures were distinguished: stretched, curved and curled up. A 5 minutes period of any posture was analyzed. The sleep data were gathered of the first two hours of the sleep period. The analysis revealed that the overall power of a curled up posture was less than that of two other sleep postures. Determination of a relation between an EEG measurement and sleep postures is promising.

