Local sleep is a neurological phenomenon where brain activity in an organism that is otherwise awake enters a state which closely resembles that of sleep.[1][2] In an electroencephalogram, these patterns generally resemble NREM slow-wave sleep, and oscillate between 'on' and 'off' periods in the same way that would be expected during an actual sleeping state.[3][4]
Local sleep can be induced by sustained and intense periods of activation of a particular brain region, especially when coupled with sleep deprivation (a condition colloquially called "sleep drunk"), although certain cortical regions of mice have been demonstrated to enter local sleep for very brief amounts of time without any immediate trigger.[3] Unlike microsleep, however, these brief periods of local sleep occur while the animal is still entirely conscious and functioning, although abilities associated with the specific brain region in local sleep tend to decline substantially.[5] For instance, local sleep in brain regions associated with movement can lead to lapses in coordination, and more generally cognitive functioning seems to be somewhat impaired by local sleep of cortical regions, with mice undergoing cortical sleep exhibiting far less awareness of their surroundings and having delayed or inappropriate reactions to stimuli.
While the function of local sleep is not definitively established, in at least one study the process has been shown to improve the performance of a task in mice.[5] The mechanism behind this is suspected to be shared with the general mechanism driving learning and memory consolidation during sleep.
^Murphy, M; Huber R; Esser S; Riedner BA; Massimini M (November 2011). "The cortical topography of local sleep". Current Topics in Medicinal Chemistry. 11 (19): 2438–46. doi:10.2174/156802611797470303. PMC3243778. PMID 21906021.
^ abYoung, Ed (April 2011). "Individual Neurons go to Sleep While Rats Stay Awake". Discover Magazine.
January 01, 1970
local, sleep, neurological, phenomenon, where, brain, activity, organism, that, otherwise, awake, enters, state, which, closely, resembles, that, sleep, electroencephalogram, these, patterns, generally, resemble, nrem, slow, wave, sleep, oscillate, between, pe. Local sleep is a neurological phenomenon where brain activity in an organism that is otherwise awake enters a state which closely resembles that of sleep 1 2 In an electroencephalogram these patterns generally resemble NREM slow wave sleep and oscillate between on and off periods in the same way that would be expected during an actual sleeping state 3 4 Local sleep can be induced by sustained and intense periods of activation of a particular brain region especially when coupled with sleep deprivation a condition colloquially called sleep drunk although certain cortical regions of mice have been demonstrated to enter local sleep for very brief amounts of time without any immediate trigger 3 Unlike microsleep however these brief periods of local sleep occur while the animal is still entirely conscious and functioning although abilities associated with the specific brain region in local sleep tend to decline substantially 5 For instance local sleep in brain regions associated with movement can lead to lapses in coordination and more generally cognitive functioning seems to be somewhat impaired by local sleep of cortical regions with mice undergoing cortical sleep exhibiting far less awareness of their surroundings and having delayed or inappropriate reactions to stimuli While the function of local sleep is not definitively established in at least one study the process has been shown to improve the performance of a task in mice 5 The mechanism behind this is suspected to be shared with the general mechanism driving learning and memory consolidation during sleep See also editNeuroscience of sleep Sleep and memoryReferences edit Cirelli Charia Giulio Tuononi August 2013 Perchance to Prune Scientific American 309 2 34 39 Bibcode 2013SciAm 309b 34T doi 10 1038 scientificamerican0813 34 PMID 23923204 Nir Yuval Local sleep brain regions go offline at different moments Human Frontier Science Program a b Vyazovskiy VV Olcese U Hanlon EC Nir Y Cirelli C Tononi G April 2011 Local sleep in awake rats Nature 472 7344 443 447 Bibcode 2011Natur 472 443V doi 10 1038 nature10009 PMC 3085007 PMID 21525926 Murphy M Huber R Esser S Riedner BA Massimini M November 2011 The cortical topography of local sleep Current Topics in Medicinal Chemistry 11 19 2438 46 doi 10 2174 156802611797470303 PMC 3243778 PMID 21906021 a b Young Ed April 2011 Individual Neurons go to Sleep While Rats Stay Awake Discover Magazine Retrieved from https en wikipedia org w index php title Local sleep amp oldid 1124970481, wikipedia, wiki, book, books, library,
