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Alterations in cognitive performance during passive hyperthermia are task dependent

The objectives of this study were to (1) assess the effect of passive heating upon attention and memory task performance, and (2) evaluate the effectiveness of the application of cold packs to the head on preserving these functions. Using a counterbalance design 16 subjects underwent three trials: a...

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Autores principales: Gaoua, Nadia, Racinais, Sebastien, Grantham, Justin, Massioui, Farid El
Formato: Texto
Lenguaje:English
Publicado: Informa Healthcare 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3082171/
https://www.ncbi.nlm.nih.gov/pubmed/21070137
http://dx.doi.org/10.3109/02656736.2010.516305
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author Gaoua, Nadia
Racinais, Sebastien
Grantham, Justin
Massioui, Farid El
author_facet Gaoua, Nadia
Racinais, Sebastien
Grantham, Justin
Massioui, Farid El
author_sort Gaoua, Nadia
collection PubMed
description The objectives of this study were to (1) assess the effect of passive heating upon attention and memory task performance, and (2) evaluate the effectiveness of the application of cold packs to the head on preserving these functions. Using a counterbalance design 16 subjects underwent three trials: a control (CON, 20°C, 40% rH), hot (HOT, 50°C, 50% rH) and hot with the head kept cool (HHC). In each condition, three attention tests and two memory tests were performed. Mean core, forehead and tympanic temperatures were all significantly higher (p< 0.05) during HOT (38.6° ±0.1°, 39.6° ±0.2° and 38.8°±0.1°C, respectively) and HHC (38°±0.2, 37.7°±0.3° and 37.7°C, respectively) than in CON (37.1°±0.6°, 33.3° ±0.2° and 35.9°±0.3°C, respectively). Results indicate that there was impairment in working memory with heat exposure (p < 0.05) without alteration in attentional processes. The regular application of cold packs only prevented the detrimental effect of hyperthermia on short-term memory. Our results show that impairments in cognitive function with passive hyperthermia and the beneficial effect of head cooling are task dependent and suggests that exposure to a hot environment is a competing variable to the cognitive processes.
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spelling pubmed-30821712011-04-27 Alterations in cognitive performance during passive hyperthermia are task dependent Gaoua, Nadia Racinais, Sebastien Grantham, Justin Massioui, Farid El Int J Hyperthermia Research Article The objectives of this study were to (1) assess the effect of passive heating upon attention and memory task performance, and (2) evaluate the effectiveness of the application of cold packs to the head on preserving these functions. Using a counterbalance design 16 subjects underwent three trials: a control (CON, 20°C, 40% rH), hot (HOT, 50°C, 50% rH) and hot with the head kept cool (HHC). In each condition, three attention tests and two memory tests were performed. Mean core, forehead and tympanic temperatures were all significantly higher (p< 0.05) during HOT (38.6° ±0.1°, 39.6° ±0.2° and 38.8°±0.1°C, respectively) and HHC (38°±0.2, 37.7°±0.3° and 37.7°C, respectively) than in CON (37.1°±0.6°, 33.3° ±0.2° and 35.9°±0.3°C, respectively). Results indicate that there was impairment in working memory with heat exposure (p < 0.05) without alteration in attentional processes. The regular application of cold packs only prevented the detrimental effect of hyperthermia on short-term memory. Our results show that impairments in cognitive function with passive hyperthermia and the beneficial effect of head cooling are task dependent and suggests that exposure to a hot environment is a competing variable to the cognitive processes. Informa Healthcare 2011-02 2011-01-21 /pmc/articles/PMC3082171/ /pubmed/21070137 http://dx.doi.org/10.3109/02656736.2010.516305 Text en © 2011 Informa UK Ltd. http://creativecommons.org/licenses/by/2.0/ This is an open access article distributed under the Supplemental Terms and Conditions for iOpenAccess articles published in Informa Healthcare journals (http://www.informaworld.com/mpp/uploads/iopenaccess_tcs.pdf) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Gaoua, Nadia
Racinais, Sebastien
Grantham, Justin
Massioui, Farid El
Alterations in cognitive performance during passive hyperthermia are task dependent
title Alterations in cognitive performance during passive hyperthermia are task dependent
title_full Alterations in cognitive performance during passive hyperthermia are task dependent
title_fullStr Alterations in cognitive performance during passive hyperthermia are task dependent
title_full_unstemmed Alterations in cognitive performance during passive hyperthermia are task dependent
title_short Alterations in cognitive performance during passive hyperthermia are task dependent
title_sort alterations in cognitive performance during passive hyperthermia are task dependent
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3082171/
https://www.ncbi.nlm.nih.gov/pubmed/21070137
http://dx.doi.org/10.3109/02656736.2010.516305
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AT granthamjustin alterationsincognitiveperformanceduringpassivehyperthermiaaretaskdependent
AT massiouifaridel alterationsincognitiveperformanceduringpassivehyperthermiaaretaskdependent