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Occupational complexity and lifetime cognitive abilities
OBJECTIVE: To examine associations between complexity of main lifetime occupation and cognitive performance in later life. METHODS: Occupational complexity ratings for data, people, and things were collected from the Dictionary of Occupational Titles for 1,066 individuals (men = 534, women = 532) in...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Lippincott Williams & Wilkins
2014
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4277669/ https://www.ncbi.nlm.nih.gov/pubmed/25411439 http://dx.doi.org/10.1212/WNL.0000000000001075 |
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author | Smart, Emily L. Gow, Alan J. Deary, Ian J. |
author_facet | Smart, Emily L. Gow, Alan J. Deary, Ian J. |
author_sort | Smart, Emily L. |
collection | PubMed |
description | OBJECTIVE: To examine associations between complexity of main lifetime occupation and cognitive performance in later life. METHODS: Occupational complexity ratings for data, people, and things were collected from the Dictionary of Occupational Titles for 1,066 individuals (men = 534, women = 532) in the Lothian Birth Cohort 1936. IQ data were available from mean age 11 years. Cognitive ability data across the domains of general ability, processing speed, and memory were available at mean age 70 years. RESULTS: General linear model analyses indicated that complexity of work with people and data were associated with better cognitive performance at age 70, after including age 11 IQ, years of education, and social deprivation. CONCLUSIONS: The current findings are supportive of the differential preservation hypotheses that more stimulating environments preserve cognitive ability in later life, although the continued effects into old age are still debated. Studies that have early-life cognitive ability measures are rare, and the current study offers interesting prospects for future research that may further the understanding of successful aging. |
format | Online Article Text |
id | pubmed-4277669 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Lippincott Williams & Wilkins |
record_format | MEDLINE/PubMed |
spelling | pubmed-42776692015-01-06 Occupational complexity and lifetime cognitive abilities Smart, Emily L. Gow, Alan J. Deary, Ian J. Neurology Article OBJECTIVE: To examine associations between complexity of main lifetime occupation and cognitive performance in later life. METHODS: Occupational complexity ratings for data, people, and things were collected from the Dictionary of Occupational Titles for 1,066 individuals (men = 534, women = 532) in the Lothian Birth Cohort 1936. IQ data were available from mean age 11 years. Cognitive ability data across the domains of general ability, processing speed, and memory were available at mean age 70 years. RESULTS: General linear model analyses indicated that complexity of work with people and data were associated with better cognitive performance at age 70, after including age 11 IQ, years of education, and social deprivation. CONCLUSIONS: The current findings are supportive of the differential preservation hypotheses that more stimulating environments preserve cognitive ability in later life, although the continued effects into old age are still debated. Studies that have early-life cognitive ability measures are rare, and the current study offers interesting prospects for future research that may further the understanding of successful aging. Lippincott Williams & Wilkins 2014-12-09 /pmc/articles/PMC4277669/ /pubmed/25411439 http://dx.doi.org/10.1212/WNL.0000000000001075 Text en © 2014 American Academy of Neurology This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Article Smart, Emily L. Gow, Alan J. Deary, Ian J. Occupational complexity and lifetime cognitive abilities |
title | Occupational complexity and lifetime cognitive abilities |
title_full | Occupational complexity and lifetime cognitive abilities |
title_fullStr | Occupational complexity and lifetime cognitive abilities |
title_full_unstemmed | Occupational complexity and lifetime cognitive abilities |
title_short | Occupational complexity and lifetime cognitive abilities |
title_sort | occupational complexity and lifetime cognitive abilities |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4277669/ https://www.ncbi.nlm.nih.gov/pubmed/25411439 http://dx.doi.org/10.1212/WNL.0000000000001075 |
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