A genetic analysis of brain volumes and IQ in children

Marieke van Leeuwen, Jiska S. Peper, Stéphanie Martine van den Berg, Rachel M. Brouwer, Hilleke E. Hulshoff Pol, Rene S. Kahn, Dorret I. Boomsma

    Research output: Contribution to journalArticleAcademicpeer-review

    32 Citations (Scopus)


    In a population-based sample of 112 nine-year old twin pairs, we investigated the association among total brain volume, gray matter and white matter volume, intelligence as assessed by the Raven IQ test, verbal comprehension, perceptual organization and perceptual speed as assessed by the Wechsler Intelligence Scale for Children-III. Phenotypic correlations between the brain volumes and intelligence traits ranged between .20 and .33. Processing speed and brain volume did not correlate. The relation between brain volume and intelligence was entirely explained by a common set of genes influencing both sets of phenotypes.
    Original languageUndefined
    Pages (from-to)181-191
    Number of pages11
    JournalIntelligence: the future of computing
    Issue number2
    Publication statusPublished - 2009


    • IR-73344
    • METIS-261456

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