Circadian rhythms of house sparrows are phase-shifted by pharmacological manipulation of brain serotonin

Vincent M. Cassone, Michael Menaker

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Fluoxetine, a specific serotonergic reuptake blocker and indirect agonist, and 5,6-dihydroxytryptamine, a serotonergic neurotoxin, affect the free-running locomotor rhythms of house sparrows, Passer domesticus. Both compounds caused phase-shifts in the circadian system that times locomotor activity of the birds. The magnitude and direction of the phase-shifts were dependent on the circadian phase of the drug administration, suggesting that serotonergic activity can modulate the circadian pacemaker of the house sparrow.

Original languageEnglish
Pages (from-to)145-152
Number of pages8
JournalJournal of Comparative Physiology A
Volume156
Issue number1
DOIs
StatePublished - Jan 1985

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Physiology
  • Animal Science and Zoology
  • Behavioral Neuroscience

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