Opposing temperature responses to intrahypothalamic injections of 5-hydroxytryptamine in the pigeon exposed to cold.
5-Hydroxytryptamine injected into posterior and anterior parts of the pigeon hypothalamus evoked a short lasting hyperthermia or hypothermia, respectively. Variable responses obtained within the same brain region suggest the existence of different 5-HT systems, even in rather limited hypothalamic areas.
D000818:Animals; D001833:Body Temperature Regulation / Q000187:drug effects*; D003080:Cold Temperature; D010856:Columbidae / Q000502:physiology*; D007031:Hypothalamus / Q000187:drug effects / Q000502:physiology*; D007032:Hypothalamus, Anterior / Q000502:physiology; D007034:Hypothalamus, Posterior / Q000502:physiology; D012701:Serotonin / Q000494:pharmacology*
D012701:Serotonin