Does Sleep Play a Role in Memory Consolidation? A Comparative Test

被引:27
作者
Capellini, Isabella [1 ]
McNamara, Patrick [2 ,3 ]
Preston, Brian T. [4 ]
Nunn, Charles L. [4 ,5 ,6 ]
Barton, Robert A. [1 ]
机构
[1] Univ Durham, Dept Anthropol, Durham, England
[2] Boston Univ, Sch Med, Dept Neurol, Boston, MA 02118 USA
[3] Boston VA Healthcare Syst, Boston, MA USA
[4] Harvard Univ, Dept Anthropol, Cambridge, MA 02138 USA
[5] Max Planck Inst Evolutionary Anthropol, Leipzig, Germany
[6] Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA
来源
PLOS ONE | 2009年 / 4卷 / 02期
关键词
PHYLOGENETIC ANALYSIS; BRAIN; EVOLUTION;
D O I
10.1371/journal.pone.0004609
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
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.
引用
收藏
页数:4
相关论文
共 47 条
  • [31] The REM sleep - Memory consolidation hypothesis
    Siegel, JM
    [J]. SCIENCE, 2001, 294 (5544) : 1058 - 1063
  • [32] SLEEP STATES AND MEMORY PROCESSES
    SMITH, C
    [J]. BEHAVIOURAL BRAIN RESEARCH, 1995, 69 (1-2) : 137 - 145
  • [33] Structure and function of declarative and nondeclarative memory systems
    Squire, LR
    Zola, SM
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1996, 93 (24) : 13515 - 13522
  • [34] SQUIRE LR, NEUROPSYCHOLOGY MEMO
  • [35] NEW AND REVISED DATA ON VOLUMES OF BRAIN STRUCTURES IN INSECTIVORES AND PRIMATES
    STEPHAN, H
    FRAHM, H
    BARON, G
    [J]. FOLIA PRIMATOLOGICA, 1981, 35 (01) : 1 - 29
  • [36] Sleep-related hippocampo-cortical interplay during emotional memory recollection
    Sterpenich, Virginie
    Albouy, Genevieve
    Boly, Melanie
    Vandewalle, Gilles
    Darsaud, Annabelle
    Balteau, Evelyne
    Dang-Vu, Thien Thanh
    Desseilles, Martin
    D'Argembeau, Arnaud
    Gais, Steffen
    Rauchs, Geraldine
    Schabus, Manuel
    Degueldre, Christian
    Luxen, Andre
    Collette, Fabienne
    Maquet, Pierre
    [J]. PLOS BIOLOGY, 2007, 5 (11): : 2709 - 2722
  • [37] Sleep-dependent memory consolidation and reconsolidation
    Stickgold, Robert
    Walker, Matthew P.
    [J]. SLEEP MEDICINE, 2007, 8 (04) : 331 - 343
  • [38] Striedter GF, 2005, Principles of brain evolution
  • [39] What is the amygdala?
    Swanson, LW
    Petrovich, GD
    [J]. TRENDS IN NEUROSCIENCES, 1998, 21 (08) : 323 - 331
  • [40] Tobler I., 2000, PRINCIPLES PRACTICE, P72