Show simple item record

Files in this item

Thumbnail

Item metadata

dc.contributor.authorElmegaard, Siri
dc.contributor.authorJohnson, Mark
dc.contributor.authorMadsen, Peter
dc.contributor.authorMcDonald, Birgitte
dc.date.accessioned2017-11-22T00:33:12Z
dc.date.available2017-11-22T00:33:12Z
dc.date.issued2016-11-21
dc.identifier.citationElmegaard , S , Johnson , M , Madsen , P & McDonald , B 2016 , ' Cognitive control of heart rate in diving harbor porpoises ' , Current Biology , vol. 26 , no. 22 , pp. R1175-R1176 . https://doi.org/10.1016/j.cub.2016.10.020en
dc.identifier.issn0960-9822
dc.identifier.otherPURE: 248203964
dc.identifier.otherPURE UUID: 4b4e57c4-d9ea-4db4-98a7-72fb33102077
dc.identifier.otherScopus: 84997124353
dc.identifier.otherWOS: 000388545900005
dc.identifier.urihttp://hdl.handle.net/10023/12145
dc.descriptionM.J. was funded by the Marine Alliance for Science and Technology, Scotland, and by a Marie Curie Career Integration Grant.en
dc.description.abstractMarine mammals have adapted to forage while holding their breath in a suite of aquatic habitats from shallow rivers to deep oceans. The key to tolerate such extensive apnea is the dive response, which comprises bradycardia and peripheral vasoconstriction. Although initially considered an all-or-nothing reflex [1] , numerous studies on freely diving marine mammals have revealed substantial dynamics of the dive response to meet the impending dive demands of depth, duration and exercise [2] . Such adjustments are not only autonomic responses, but are under acute cognitive control in pinnipeds [3] living amphibiously on land and in water. The fully aquatic cetaceans would similarly benefit from cognitive cardiovascular control; however, even though they have exercise-modulated diving bradycardia [2] and full voluntary control of their respiratory system to such extent that even mild anesthesia often leads to asphyxiation [4] , cognitive cardiovascular control has never been demonstrated for this large group of marine mammals. To address this, we tested the hypothesis that porpoises modulate bradycardia according to anticipated dive duration. Two harbor porpoises, instrumented with ECG recording tags, were trained to perform 20- and 80-second stationary dives, during which they adjusted bradycardia to the anticipated duration, demonstrating cognitive control of their dive response.
dc.format.extent2
dc.language.isoeng
dc.relation.ispartofCurrent Biologyen
dc.rights© 2016, Elsevier. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.sciencedirect.com / http://dx.doi.org/10.1016/j.cub.2016.10.020en
dc.subjectQH301 Biologyen
dc.subjectQL Zoologyen
dc.subjectQP Physiologyen
dc.subjectNDASen
dc.subjectBDCen
dc.subjectR2Cen
dc.subject.lccQH301en
dc.subject.lccQLen
dc.subject.lccQPen
dc.titleCognitive control of heart rate in diving harbor porpoisesen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Marine Alliance for Science & Technology Scotlanden
dc.contributor.institutionUniversity of St Andrews.Sea Mammal Research Uniten
dc.contributor.institutionUniversity of St Andrews.Sound Tags Groupen
dc.contributor.institutionUniversity of St Andrews.Bioacoustics groupen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen
dc.identifier.doihttps://doi.org/10.1016/j.cub.2016.10.020
dc.description.statusPeer revieweden
dc.date.embargoedUntil2017-11-21


This item appears in the following Collection(s)

Show simple item record