Slow waves in the sleep electroencephalogram after daily torpor are homeostatically regulated
- PMID: 10757538
- DOI: 10.1097/00001756-200003200-00044
Slow waves in the sleep electroencephalogram after daily torpor are homeostatically regulated
Abstract
Animals emerging from hibernation or daily torpor show an initial increase in electroencephalogram slow-wave activity (SWA, power density between 0.75 and 4.0 Hz) in non-REM sleep, which subsequently declines. These typical features of sleep following prolonged waking led to the interpretation that the animals incur a sleep deprivation (SD) during torpor. This hypothesis has recently been questioned because the increase in SWA disappears in ground squirrels when sleep deprived immediately following hibernation. Here we show that in Djungarian hamsters subjected to SD immediately after daily torpor a predictable increase in SWA occurs during recovery. This supports the notion that the hamsters must sleep to dissipate the pressure for SWA incurred during torpor. The similarity between sleep after waking and torpor may provide a key for understanding sleep regulation.
Similar articles
-
Selective sleep deprivation after daily torpor in the Djungarian hamster.J Sleep Res. 2002 Dec;11(4):313-9. doi: 10.1046/j.1365-2869.2002.00310.x. J Sleep Res. 2002. PMID: 12464099
-
Sleep regulation in the Djungarian hamster: comparison of the dynamics leading to the slow-wave activity increase after sleep deprivation and daily torpor.Sleep. 2003 Aug 1;26(5):567-72. doi: 10.1093/sleep/26.5.567. Sleep. 2003. PMID: 12938809
-
Different Effects of Sleep Deprivation and Torpor on EEG Slow-Wave Characteristics in Djungarian Hamsters.Cereb Cortex. 2017 Feb 1;27(2):950-961. doi: 10.1093/cercor/bhx020. Cereb Cortex. 2017. PMID: 28168294 Free PMC article.
-
From slow waves to sleep homeostasis: new perspectives.Arch Ital Biol. 2001 Feb;139(1-2):53-61. Arch Ital Biol. 2001. PMID: 11256187 Review.
-
Sleep and circadian rhythms in mammalian torpor.Annu Rev Physiol. 2004;66:275-89. doi: 10.1146/annurev.physiol.66.032102.115313. Annu Rev Physiol. 2004. PMID: 14977404 Review.
Cited by
-
Circadian programming of the ellipsoid body sleep homeostat in Drosophila.Elife. 2022 Jun 23;11:e74327. doi: 10.7554/eLife.74327. Elife. 2022. PMID: 35735904 Free PMC article.
-
Seasonal aspects of sleep in the Djungarian hamster.BMC Neurosci. 2003 May 19;4:9. doi: 10.1186/1471-2202-4-9. BMC Neurosci. 2003. PMID: 12756056 Free PMC article.
-
The relationship between fasting-induced torpor, sleep, and wakefulness in laboratory mice.Sleep. 2021 Sep 13;44(9):zsab093. doi: 10.1093/sleep/zsab093. Sleep. 2021. PMID: 33838033 Free PMC article.
-
The ecological relevance of sleep: the trade-off between sleep, memory and energy conservation.Philos Trans R Soc Lond B Biol Sci. 2010 Mar 27;365(1542):945-59. doi: 10.1098/rstb.2009.0209. Philos Trans R Soc Lond B Biol Sci. 2010. PMID: 20156818 Free PMC article. Review.
-
Is Adenosine Action Common Ground for NREM Sleep, Torpor, and Other Hypometabolic States?Physiology (Bethesda). 2018 May 1;33(3):182-196. doi: 10.1152/physiol.00007.2018. Physiology (Bethesda). 2018. PMID: 29616880 Free PMC article. Review.
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
