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Nature 440, 619-620 (30 March 2006) | doi:10.1038/440619b; Published online 29 March 2006
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Cognitive science: Brain development and IQ
Richard Passingham1
Abstract
If intelligence is partly determined by our genes, how does brain development relate to IQ? An attempt to answer this question measures the size of the outer layer of the brain, the cortex, with surprising results.
Shaw and colleagues (page 676 of this issue)1 have investigated whether there is a relationship between intelligence and physical dimensions of the brain. Specifically, they measure the thickness of the cortex; the complex computations carried out by the brain depend on the firing of the cortical cells.
- Richard Passingham is in the Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford OX1 3UD, UK.
Email: dick.passingham@psy.ox.ac.uk
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