Sleep in the northern fur seal

Current Opinion in Neurobiology
Oleg I LyaminJerome M Siegel

Abstract

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.

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Citations

Dec 6, 2017·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Ada Eban-RothschildLuis de Lecea
Nov 30, 2020·Sleep·Oleg I LyaminJerome M Siegel
Oct 31, 2020·Frontiers in Psychology·Koji L Ode, Hiroki R Ueda
Feb 3, 2018·Neuroscience and Biobehavioral Reviews·Sarah LyNirinjini Naidoo
Mar 24, 2021·Scientific Reports·H M VanceM Johnson
Apr 27, 2021·Frontiers in Neuroscience·Yuri Panchin, Vladimir M Kovalzon
Aug 10, 2021·Sleep·Oleg I LyaminViatcheslav V Rozhnov
Oct 29, 2021·Science·Nicholas P Franks, William Wisden

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