Does Sleep Play a Role in Memory Consolidation? A Comparative Test
Publication Date
February 25, 2009
Journal
PLOS ONE
Authors
Isabella Capellini, Patrick Mc Namara, Brian T. Preston, Charles L. Nunn, et al
Volume
4
Issue
2
Pages
e4609
DOI
https://dx.plos.org/10.1371/journal.pone.0004609
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0004609
PubMed
http://www.ncbi.nlm.nih.gov/pubmed/19240803
PubMed Central
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2643482
Europe PMC
http://europepmc.org/abstract/MED/19240803
Web of Science
000278086700019
Scopus
84887212493
Mendeley
http://www.mendeley.com/research/sleep-play-role-memory-consolidation-comparative-test
Events
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Mendeley | Further Information

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Scopus | Further Information

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  • {"files"=>["https://ndownloader.figshare.com/files/448581"], "description"=>"<div><p>Sleep is a pervasive characteristic of mammalian species, yet its purpose remains obscure. It is often proposed that ‘sleep is for the brain’, a view that is supported by experimental studies showing that sleep improves cognitive processes such as memory consolidation. Some comparative studies have also reported that mammalian sleep durations are higher among more encephalized species. However, no study has assessed the relationship between sleep and the brain structures that are implicated in specific cognitive processes across species. The hippocampus, neocortex and amygdala are important for memory consolidation and learning and are also in a highly actived state during sleep. We therefore investigated the evolutionary relationship between mammalian sleep and the size of these brain structures using phylogenetic comparative methods. We found that evolutionary increases in the size of the amygdala are associated with corresponding increases in NREM sleep durations. These results are consistent with the hypothesis that NREM sleep is functionally linked with specializations of the amygdala, including perhaps memory processing.</p></div>", "links"=>[], "tags"=>["comparative"], "article_id"=>148411, "categories"=>["Evolutionary Biology", "Cancer"], "users"=>["Isabella Capellini", "Patrick McNamara", "Brian T. Preston", "Charles L. Nunn", "Robert A. Barton"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0004609", "stats"=>{"downloads"=>1, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Does_Sleep_Play_a_Role_in_Memory_Consolidation_A_Comparative_Test/148411", "title"=>"Does Sleep Play a Role in Memory Consolidation? A Comparative Test", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2009-02-25 02:20:11"}
  • {"files"=>["https://ndownloader.figshare.com/files/907364"], "description"=>"<p>NREM sleep durations increase with relative amygdalar volumes after accounting for scaling effects [(NREM sleep time) = 1.50+0.66 * (amygdala volumes)−0.45 * (rest of the brain); see text]. The plot shows relative amygdalar volumes, which were calculated with a phylogenetically corrected regression of amygdalar volumes on the rest of the brain, using ML in PGLS (see <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0004609#s2\" target=\"_blank\">methods</a>). Species number: (1) <i>Microcebus murinus</i>, (2) <i>Rattus norvegicus</i>, (3) <i>Nannospalax ehrenbergi</i>, (4) <i>Tupaia glis</i>, (5) <i>Callithrix jacchus</i>, (6) <i>Pan troglodytes</i>, (7) <i>Saimiri sciureus</i>, (8) <i>Papio hamadryas</i>, (9) <i>Erythrocebus patas</i>, (10) <i>Macaca mulatta</i>, (11) <i>Tenrec ecaudatus</i>, (12) <i>Erinaceus europaeus</i>, (13) <i>Aotus trivirgatus</i>.</p>", "links"=>[], "tags"=>["Evolutionary biology", "computational biology/evolutionary modeling", "evolutionary biology/bioinformatics"], "article_id"=>577821, "categories"=>["Evolutionary Biology", "Infectious Diseases"], "users"=>["Isabella Capellini", "Patrick McNamara", "Brian T. Preston", "Charles L. Nunn", "Robert A. Barton"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0004609.g001", "stats"=>{"downloads"=>2, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_NREM_sleep_time_and_amygdala_/577821", "title"=>"NREM sleep time and amygdala.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2009-02-25 02:10:21"}

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