Wollnik, Franziska2014-05-212016-03-312014-05-212016-03-311985412007134http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-92898http://elib.uni-stuttgart.de/handle/11682/8233http://dx.doi.org/10.18419/opus-8216The present study supplies information supporting an obvious sex difference in the daily pattern of locomotor activity in laboratory rats. Ultradian rhythms, which have been found to be genetically fixed in two inbred strains of rats, are also sex-specific. They were observed in male animals of these strains. The females failed to show any ultradian rhythmicity.eninfo:eu-repo/semantics/openAccessUltradianrhythmus , Motorik , Geschlechtsunterschied , Ratte590article