Sleep in the northern fur seal.

TitleSleep in the northern fur seal.
Publication TypeJournal Article
Year of Publication2017
AuthorsLyamin OI, Mukhametov LM, Siegel JM
JournalCurr Opin Neurobiol
Date Published2017 Jun

The pattern of sleep in the fur seal, a semiaquatic pinniped, has several striking behavioral and physiological adaptations that allow this species to inhabit both the land and water environment. These features include unihemispheric slow wave sleep (USWS, also being unihemispheric waking), the ability to maintain movement for stabilization of the sleep posture and to briefly open one eye while having a sleep electroencephalogram (EEG) in one hemisphere. In vivo microdialysis studies suggest that acetylcholine release is required for cortical activation during USWS, and that monoamines are not required for USWS. The need to breathe, to maintain efficient thermoregulation, and to avoid predation have shaped the sleep patterns in semiaquatic fur seals as in fully aquatic cetaceans.

Alternate JournalCurr. Opin. Neurobiol.
PubMed ID28505502
Grant ListI01 BX001753 / BX / BLRD VA / United States
R01 HL041370 / HL / NHLBI NIH HHS / United States