Thursday, December 11, 2014

Subcortical intelligence: Caudate volume predicts IQ in healthy adults

Ask your doctor if yours was damaged in the stroke and what stroke protocol is used to rebuild it.
Yes, I know we are no longer healthy adults, but our doctors can at least treat us like adults.
http://www.ncbi.nlm.nih.gov/pubmed/25491047?dopt=Abstract
Grazioplene RG1, G Ryman S, Gray JR, Rustichini A, Jung RE, DeYoung CG.

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Abstract

 This study examined the association between size of the caudate nuclei and intelligence. Based on the central role of the caudate in learning, as well as neuroimaging studies linking greater caudate volume to better attentional function, verbal ability, and dopamine receptor availability, we hypothesized the existence of a positive association between intelligence and caudate volume in three large independent samples of healthy adults (total N = 517). Regression of IQ onto bilateral caudate volume controlling for age, sex, and total brain volume indicated a significant positive correlation between caudate volume and intelligence, with a comparable magnitude of effect across each of the three samples. No other subcortical structures were independently associated with IQ, suggesting a specific biological link between caudate morphology and intelligence.
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1 comment:

  1. Elizabeth, John, Jack, and LukeDecember 12, 2014 at 12:05 AM

    Awww, yes, lucky me. My left caudate was completely destroyed. Know I know what its like to be not so smart. It sucks. The physical deficits were much "easier" for me to overcome, but the cognitive deficits are still completely annoying to me.

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