PMID: 5256998Mar 1, 1969Paper

Relationship of sleep, respiration, and anesthesia in the porpoise: a preliminary report

Proceedings of the National Academy of Sciences of the United States of America
J G McCormick

Abstract

The porpoise, an air-breathing mammal whose habits are entirely aquatic, presents special problems of respiration, sleep, and anesthesia. These problems have been studied in three species, Tursiops truncatus, Lagenorhynchus obliquidens, and Phocoenoides dalli. The respiratory rhythm is unusual in that there is an extended pause-an apneustic plateau-between periods of expiration and inspiration. This rhythm has been observed under waking conditions, during sleep, and also when the animal is anesthetized. Two kinds of sleep behavior have been identified in Tursiops and Lagenorhynchus. In one of these, which is a light phase, the animal rests on the tank bottom for short periods, up to perhaps four minutes, and then comes to the surface to breathe. In a deeper phase the animal maintains itself at the surface for extended periods, breathing in an automatic fashion. In Phocoenoides no sleep behavior has been observed at any time.I have examined the special theory of Dr. John C. Lilly regarding respiration and sleep in the porpoise, which is based upon the assumption that respiration in this animal is altogether voluntary, and from my observations have concluded that respiration in the porpoise can be automatic or can be brought unde...Continue Reading

References

Mar 1, 1968·Comparative Biochemistry and Physiology·S M HorvathS Azar
Jan 28, 1966·Science·S H Ridgway, D G Johnston
Aug 11, 1967·Science·W E SchevillR G Van Gelder
Oct 27, 1967·Science·S H Ridgway, J G McCormick
Dec 18, 1964·Science·E L NAGELW L MCFARLAND

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Citations

Jan 1, 1984·Neuroscience and Biobehavioral Reviews·S S Campbell, I Tobler
Jun 5, 2002·Physiology & Behavior·O I LyaminL M Mukhametov
Sep 5, 2003·Physiology & Behavior·Yuske Sekiguchi, Shiro Kohshima
Dec 19, 2000·Neuroscience and Biobehavioral Reviews·N C RattenborgS L Lima
Jan 26, 2002·Behavioural Brain Research·O I LyaminO V Shpak
Apr 18, 2009·Zhurnal evoliutsionnoĭ biokhimii i fiziologii·O V ShpakL M Mukhametov
Jan 24, 2014·Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians·Jennifer L Higgins, Dean A Hendrickson
Jun 30, 2007·Physiology & Behavior·Oleg LyaminJerome Siegel
Aug 1, 1975·Animal Behaviour·R Meddis
May 19, 2017·The Journal of Experimental Biology·Andreas FahlmanDaniel Garcia-Parraga
Aug 26, 2006·Anesthesia and Analgesia·Red S HowardSam H Ridgway
Feb 23, 2019·Military Medicine·Clara LeeGordon Wisbach
Nov 30, 2012·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Rubén RialCristina Nicolau
May 5, 2009·The Journal of Experimental Biology·Sam RidgwayAllen Goldblatt
Sep 1, 2006·The Journal of Experimental Biology·Sam RidgwayAllen Goldblatt
Jul 22, 2006·The Journal of Experimental Biology·Sam RidgwayCarl Hoh

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