Diurnal rhythms in nociceptive thresholds of rats

Joel P Rosenfeld*, Peter E. Rice

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Paw lick, tail flick, and other nociceptive reaction latencies were observed in rats to be longer in the evening than in the daytime, suggesting an endogenous opiate mediated decrease in pain sensitivity in the evening in comparison with the daytime.

Original languageEnglish (US)
Pages (from-to)419-420
Number of pages2
JournalPhysiology and Behavior
Volume23
Issue number2
DOIs
StatePublished - Jan 1 1979

Keywords

  • Diurnal
  • Endorphin
  • Enkephalin
  • Naloxone
  • Nociception
  • Pain

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience

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