Second to Fourth Digit Ratio and Numerical Competence in Children

Autor/inn/en	Fink, Bernhard; Brookes, Helen; Neave, Nick; Manning, John T.; Geary, David C.
Titel	Second to Fourth Digit Ratio and Numerical Competence in Children
Quelle	In: Brain and Cognition, 61 (2006) 2, S.211-218 (8 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-2626
DOI	10.1016/j.bandc.2006.01.001
Schlagwörter	Prenatal Influences; Mathematics Skills; Gender Differences; Computation; Correlation; Children; Handedness; Foreign Countries; Numeracy; Comprehension; Germany + Suchen Sie Ihr Suchwort? Pränataler Einfluss; Mathmatics achievement; Mathematics ability; Mathematische Kompetenz; Geschlechterkonflikt; Korrelation; Child; Kind; Kinder; Linkshändigkeit; Ausland; Rechenkompetenz; Verstehen; Verständnis; Deutschland
Abstract	The ratio between the 2nd and 4th fingers (2D:4D)--a potential proxy for prenatal testosterone (T) exposure--shows a sex difference, with males usually having lower mean values; the latter potentially indicates higher prenatal T exposure. We studied relations between 2D:4D and competencies in the domains of counting, number knowledge, and visual-number representation in 73 children aged 6-11 years. Significant negative correlations between numerical performance in all of these areas and right and left hand 2D:4D ratios were found for boys but not girls. To the extent that 2D:4D ratios reflects prenatal exposure to T, the implications are (i) high prenatal T may be associated with better performance on some basic numerical measures for boys, and (ii) prenatal exposure to T may affect boys and girls differently with respect to some numerical competencies. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10