PMID- 34179868
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210629
IS  - 2667-2421 (Electronic)
IS  - 2667-2421 (Linking)
VI  - 10
DP  - 2021 Jun
TI  - Sleep in two free-roaming blue wildebeest (Connochaetes taurinus), with 
      observations on the agreement of polysomnographic and actigraphic techniques.
PG  - 142-152
LID - 10.1016/j.ibneur.2021.02.005 [doi]
AB  - Most studies examining sleep in mammals are done under controlled conditions in 
      laboratory/zoological facilities with few studies being conducted in their 
      natural environment. It is not always possible to record sleep 
      polysomnographically (PSG) from animals in their natural environments, as PSG is 
      invasive, requiring the surgical implantation of electrodes on the surface of the 
      brain. In contrast, actigraphy (ACT) has been shown to be a minimally-invasive 
      method to objectively measure overall sleep times in some mammals, although not 
      revealing specific sleep states. The aim of this study is two-fold, first, to 
      measure sleep polysomnographically in free-roaming blue wildebeest (Connochaetes 
      taurinus) under the most natural conditions possible, and second, to establish 
      the degree of concordance between ACT and PSG recordings undertaken 
      simultaneously in the same individuals. Here we examined sleep in the blue 
      wildebeest, in a naturalistic setting, using both polysomnography (PSG) and 
      actigraphy (ACT). PSG showed that total sleep time (TST) in the blue wildebeest 
      for a 24-h period was 4.53 h (+/-0.12 h), 4.26 h (+/-0.11 h) spent in slow wave 
      (non-REM) sleep and 0.28 h (+/-0.01 h) spent in rapid eye movement (REM) sleep, 
      with 19.47 h (+/-0.12 h) spent in Wake. ACT showed that the blue wildebeest spent 
      19.23 h (+/-0.18 h) Active and 4.77 h (+/-0.18 h) Inactive. For both animals studied, 
      a fair agreement between the two techniques for sleep scoring was observed, with 
      approximately 45% of corresponding epochs analyzed being scored as both sleep 
      (using PSG) and inactive (using ACT).
CI  - (c) 2021 Published by Elsevier Ltd on behalf of International Brain Research 
      Organization.
FAU - Malungo, Illke B
AU  - Malungo IB
AD  - School of Anatomical Sciences, Faculty of Health Sciences, University of the 
      Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa.
FAU - Gravett, Nadine
AU  - Gravett N
AD  - School of Anatomical Sciences, Faculty of Health Sciences, University of the 
      Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa.
FAU - Bhagwandin, Adhil
AU  - Bhagwandin A
AD  - School of Anatomical Sciences, Faculty of Health Sciences, University of the 
      Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa.
FAU - Davimes, Joshua G
AU  - Davimes JG
AD  - School of Anatomical Sciences, Faculty of Health Sciences, University of the 
      Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa.
FAU - Manger, Paul R
AU  - Manger PR
AD  - School of Anatomical Sciences, Faculty of Health Sciences, University of the 
      Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa.
LA  - eng
PT  - Journal Article
DEP - 20210217
PL  - Netherlands
TA  - IBRO Neurosci Rep
JT  - IBRO neuroscience reports
JID - 101775148
PMC - PMC8211919
OTO - NOTNLM
OT  - Actigraphy
OT  - Non-REM sleep
OT  - Polysomnography
OT  - REM sleep
OT  - Sleep
COIS- The authors have no conflicts of interest to declare.
EDAT- 2021/06/29 06:00
MHDA- 2021/06/29 06:01
PMCR- 2021/02/17
CRDT- 2021/06/28 06:15
PHST- 2020/09/03 00:00 [received]
PHST- 2021/02/09 00:00 [accepted]
PHST- 2021/06/28 06:15 [entrez]
PHST- 2021/06/29 06:00 [pubmed]
PHST- 2021/06/29 06:01 [medline]
PHST- 2021/02/17 00:00 [pmc-release]
AID - S2667-2421(21)00013-0 [pii]
AID - 10.1016/j.ibneur.2021.02.005 [doi]
PST - epublish
SO  - IBRO Neurosci Rep. 2021 Feb 17;10:142-152. doi: 10.1016/j.ibneur.2021.02.005. 
      eCollection 2021 Jun.