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Processing speed differences between 70- and 83-year-olds matched on childhood IQ()

Processing speed is an important human cognitive capability that might underlie differences in other cognitive skills and their aging. We aimed to test aging-related processing speed differences using a novel cross-sectional design that adjusted for cognitive ability tested in youth. We examined agi...

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Detalles Bibliográficos
Autores principales: Deary, Ian J., Ritchie, Stuart J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4796023/
https://www.ncbi.nlm.nih.gov/pubmed/27019542
http://dx.doi.org/10.1016/j.intell.2016.01.002
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author Deary, Ian J.
Ritchie, Stuart J.
author_facet Deary, Ian J.
Ritchie, Stuart J.
author_sort Deary, Ian J.
collection PubMed
description Processing speed is an important human cognitive capability that might underlie differences in other cognitive skills and their aging. We aimed to test aging-related processing speed differences using a novel cross-sectional design that adjusted for cognitive ability tested in youth. We examined aging differences on three different ways of assessing processing speed: psychometric, experimental, and psychophysical. We compared large narrow-age cohorts of 70- and 83-year-old people who were matched for cognitive ability in childhood. There were decrements of substantial effect size in all processing speed assessments in the older group that were not accounted for by prior cognitive ability, health, or fitness differences, though these factors also contributed to processing speed differences. These findings confirm age-related cognitive slowing using an unusual research design, and provide evidence against recent theories characterizing aging-related cognitive decline as a myth.
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spelling pubmed-47960232016-03-25 Processing speed differences between 70- and 83-year-olds matched on childhood IQ() Deary, Ian J. Ritchie, Stuart J. Intelligence Article Processing speed is an important human cognitive capability that might underlie differences in other cognitive skills and their aging. We aimed to test aging-related processing speed differences using a novel cross-sectional design that adjusted for cognitive ability tested in youth. We examined aging differences on three different ways of assessing processing speed: psychometric, experimental, and psychophysical. We compared large narrow-age cohorts of 70- and 83-year-old people who were matched for cognitive ability in childhood. There were decrements of substantial effect size in all processing speed assessments in the older group that were not accounted for by prior cognitive ability, health, or fitness differences, though these factors also contributed to processing speed differences. These findings confirm age-related cognitive slowing using an unusual research design, and provide evidence against recent theories characterizing aging-related cognitive decline as a myth. Elsevier 2016 /pmc/articles/PMC4796023/ /pubmed/27019542 http://dx.doi.org/10.1016/j.intell.2016.01.002 Text en © 2016 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Deary, Ian J.
Ritchie, Stuart J.
Processing speed differences between 70- and 83-year-olds matched on childhood IQ()
title Processing speed differences between 70- and 83-year-olds matched on childhood IQ()
title_full Processing speed differences between 70- and 83-year-olds matched on childhood IQ()
title_fullStr Processing speed differences between 70- and 83-year-olds matched on childhood IQ()
title_full_unstemmed Processing speed differences between 70- and 83-year-olds matched on childhood IQ()
title_short Processing speed differences between 70- and 83-year-olds matched on childhood IQ()
title_sort processing speed differences between 70- and 83-year-olds matched on childhood iq()
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4796023/
https://www.ncbi.nlm.nih.gov/pubmed/27019542
http://dx.doi.org/10.1016/j.intell.2016.01.002
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