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Whole Brain Size and General Mental Ability: A Review

We review the literature on the relation between whole brain size and general mental ability (GMA) both within and between species. Among humans, in 28 samples using brain imaging techniques, the mean brain size/GMA correlation is 0.40 (N = 1,389; p < 10(−10)); in 59 samples using external head s...

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Detalles Bibliográficos
Autores principales: Rushton, J. Philippe, Ankney, C. Davison
Formato: Texto
Lenguaje:English
Publicado: Informa Healthcare 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2668913/
https://www.ncbi.nlm.nih.gov/pubmed/19283594
http://dx.doi.org/10.1080/00207450802325843
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author Rushton, J. Philippe
Ankney, C. Davison
author_facet Rushton, J. Philippe
Ankney, C. Davison
author_sort Rushton, J. Philippe
collection PubMed
description We review the literature on the relation between whole brain size and general mental ability (GMA) both within and between species. Among humans, in 28 samples using brain imaging techniques, the mean brain size/GMA correlation is 0.40 (N = 1,389; p < 10(−10)); in 59 samples using external head size measures it is 0.20 (N = 63,405; p < 10(−10)). In 6 samples using the method of correlated vectors to distill g, the general factor of mental ability, the mean r is 0.63. We also describe the brain size/GMA correlations with age, socioeconomic position, sex, and ancestral population groups, which also provide information about brain–behavior relationships. Finally, we examine brain size and mental ability from an evolutionary and behavior genetic perspective.
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spelling pubmed-26689132009-04-14 Whole Brain Size and General Mental Ability: A Review Rushton, J. Philippe Ankney, C. Davison Int J Neurosci Article We review the literature on the relation between whole brain size and general mental ability (GMA) both within and between species. Among humans, in 28 samples using brain imaging techniques, the mean brain size/GMA correlation is 0.40 (N = 1,389; p < 10(−10)); in 59 samples using external head size measures it is 0.20 (N = 63,405; p < 10(−10)). In 6 samples using the method of correlated vectors to distill g, the general factor of mental ability, the mean r is 0.63. We also describe the brain size/GMA correlations with age, socioeconomic position, sex, and ancestral population groups, which also provide information about brain–behavior relationships. Finally, we examine brain size and mental ability from an evolutionary and behavior genetic perspective. Informa Healthcare 2009-05-19 2009-04 /pmc/articles/PMC2668913/ /pubmed/19283594 http://dx.doi.org/10.1080/00207450802325843 Text en Copyright © 2009 Informa Healthcare USA, Inc. 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 Article
Rushton, J. Philippe
Ankney, C. Davison
Whole Brain Size and General Mental Ability: A Review
title Whole Brain Size and General Mental Ability: A Review
title_full Whole Brain Size and General Mental Ability: A Review
title_fullStr Whole Brain Size and General Mental Ability: A Review
title_full_unstemmed Whole Brain Size and General Mental Ability: A Review
title_short Whole Brain Size and General Mental Ability: A Review
title_sort whole brain size and general mental ability: a review
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2668913/
https://www.ncbi.nlm.nih.gov/pubmed/19283594
http://dx.doi.org/10.1080/00207450802325843
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