Source: Intelligence
(37):156-163.
Author: Luders E, Narr KL, Thompson PM, Toga AW
Abstract:
With the advancement of image acquisition and analysis methods in recent decades, unique
opportunities have emerged to study the neuroanatomical correlates of intelligence. Traditional
approaches examining global measures have been complemented by insights from more
regional analyses based on pre-defined areas. Newer state-of-the-art approaches have further
enhanced our ability to localize the presence of correlations between cerebral characteristics
and intelligence with high anatomic precision. These in vivo assessments have confirmed
mainly positive correlations, suggesting that optimally increased brain regions are associated
with better cognitive performance. Findings further suggest that the models proposed to
explain the anatomical substrates of intelligence should address contributions from not only
(pre)frontal regions, but also widely distributed networks throughout the whole brain.