Splitting of the circadian rhythm of body temperature in the golden hamster

Gary E. Pickard, Robert Kahn, Rae Silver

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


The circadian rhythm of hamster locomotor activity "splits" into two distinct circadian components during conditions of constant illumination. To determine if the circadian rhythm of body temperature also splits under these conditions, body temperature and locomotor activity were monitored concurrently in animals housed in constant illumination. Splitting of the body temperature rhythm into two circadian components was observed in animals manifesting split activity rhythms. Concurrent splitting of both rhythms suggests a common mechanism either for the generation or coupling of these rhythms.

Original languageEnglish (US)
Pages (from-to)763-766
Number of pages4
JournalPhysiology and Behavior
Issue number5
StatePublished - May 1984
Externally publishedYes


  • Circadian rhythm
  • Circadian temperature rhythm
  • Golden hamster
  • Splitting

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience


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