High altitude exposure impairs sleep patterns, mood, and cognitive functions

High altitude exposure impairs sleep patterns, mood, and cognitive functions

Author Lemos, Valdir de Aquino Autor UNIFESP Google Scholar
Moreira Antunes, Hanna Karen Autor UNIFESP Google Scholar
Thomatieli dos Santos, Ronaldo Vagner Autor UNIFESP Google Scholar
Lira, Fabio Santos Autor UNIFESP Google Scholar
Tufik, Sergio Autor UNIFESP Google Scholar
Mello, Marco Tulio de Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
CEPE
Univ Extremo Sul Catarinense
Abstract This work evaluated the importance of sleep on mood and cognition after 24?h of exposure to hypoxia. Ten males, aged 2330 years, were placed in a normobaric chamber simulating an altitude of 4,500?m. Sleep assessments were conducted from 22:006:00; all mood and cognitive assessments were performed 20?min after awakening. the assessments were conducted in normoxic conditions and after 24?h of hypoxia. Sleep was reevaluated 14?h after the start of exposure to hypoxic conditions, and mood state and cognitive functions were reevaluated 24?h after the start of exposure to hypoxic conditions. Hypoxia reduced total sleep time, sleep efficiency, slow-wave sleep, and rapid eye movement. Depressive mood, anger, and fatigue increased under hypoxic conditions. Vigor, attention, visual and working memory, concentration, executive functions, inhibitory control, and speed of mental processing worsened. Changes in sleep patterns can modulate mood and cognition after 24?h.
Keywords Altitude
Sleep pattern
Aspects of mood
Hypoxia
Sleep complaints
Cognitive functions
Language English
Sponsor Associacao Fundo de Incentivo a Psicofarmacologia (AFIP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Centro de Estudos Multidisciplinar em Sonolincia e Acidentes (CEMSA)
Centros de Pesquisa, Expansao e Difusao do Instituto do Sono (CEPID/SONO)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
CEPID
Universidade Federal de São Paulo (UNIFESP)
Centro de Estudos em Psicobiologia e Exercicio (CEPE)
Grant number CEPID: 98/143003-3
Date 2012-09-01
Published in Psychophysiology. Hoboken: Wiley-Blackwell, v. 49, n. 9, p. 1298-1306, 2012.
ISSN 0048-5772 (Sherpa/Romeo, impact factor)
Publisher Wiley-Blackwell
Extent 1298-1306
Origin http://dx.doi.org/10.1111/j.1469-8986.2012.01411.x
Access rights Closed access
Type Article
Web of Science ID WOS:000307735000014
URI http://repositorio.unifesp.br/handle/11600/35256

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