Bigger Brains are Smarter, But Not By Much

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The study, led by Gideon Nave and Philipp Koellinger, examined the relationship between brain volume and cognitive performance, concluding that while a positive relationship exists, brain size accounts for only a small percentage of performance variance. The research utilized data from over 13,600 individuals, controlling for various confounding factors, and highlighted the need for future studies to consider brain anatomy in cognitive health investigations.