BIROn - Birkbeck Institutional Research Online

    IQ, fetal testosterone and individual variability in children's functional lateralization

    Mercure, Evelyne and Ashwin, E. and Dick, Frederic and Halit, Hanife and Auyeung, B. and Baron-Cohen, S. and Johnson, Mark H. (2009) IQ, fetal testosterone and individual variability in children's functional lateralization. Neuropsychologia 47 (12), pp. 2537-2543. ISSN 0028-3932.

    Full text not available from this repository.

    Abstract

    Previous event-related potential (ERP) studies have revealed that faces and words show a robust difference in the lateralization of their N170. The present study investigated the development of this differential lateralization in school-age boys. We assessed the potential role of fetal testosterone (FT) level as a factor biasing the prenatal development of lateralization, and the role of reading skill and Verbal IQ as factors predicting left lateralization for words in childhood. The adult pattern of differential N170 lateralization for faces and words was not present in a group of 26 school-age boys. This suggests that N170 lateralization only appears with years of experience with these stimulus categories or with late childhood maturation. FT level measured by amniocentesis did not account for a significant part of the individual variability in lateralization. Verbal IQ correlated with the degree of left lateralization of the N170 to words, but this effect was not specific to language abilities and language lateralization. A strong correlation was observed between the degree of left lateralization for words and the degree of left lateralization for faces, and both lateralization scores correlated with Verbal and Performance IQ. Possible explanations for these results are discussed along with ERP correlates of words and faces in school-age boys.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Event-related potentials, N170, reading, words, faces, development
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Research Centres and Institutes: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Administrator
    Date Deposited: 10 Jan 2011 11:40
    Last Modified: 02 Aug 2023 16:52
    URI: https://eprints.bbk.ac.uk/id/eprint/2432

    Statistics

    Activity Overview
    6 month trend
    0Downloads
    6 month trend
    542Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item