Brain imaging studies show that intelligence correlates with the size and structure of certain regions of the brain. Whether an individual becomes intelligent is largely determined by genetic and environmental influences dating back to childhood and even infancy. The following studies describe the role of neuroanatomy in human intelligence.
An integrative architecture for general intelligence and executive function revealed by lesion mapping. (Link)
Associations between IQ, total and regional brain volumes, and demography in a large normative sample of healthy children and adolescents. (Link)
Brain anatomical network and intelligence. (Link)
Brain fiber architecture, genetics, and intelligence: a high angular resolution diffusion imaging (HARDI) study. (Link)
Callosal morphology and performance on intelligence tests. (Link)
Cerebellar brain volume accounts for variance in cognitive performance in older adults. (Link)
Cognitive functions correlate with white matter architecture in a normal pediatric population: a diffusion tensor MRI study. (Link)
Correlates of intellectual ability with morphology of the hippocampus and amygdala in healthy adults. (Link)
Distributed neural system for general intelligence revealed by lesion mapping. (Link)
Efficiency of functional brain networks and intellectual performance. (Link)
Functional MRI evidence for disparate developmental processes underlying intelligence in boys and girls. (Link)
Genetic covariation between brain volumes and IQ, reading performance, and processing speed. (Link)
Genetics of brain fiber architecture and intellectual performance. (Link)
Mapping IQ and gray matter density in healthy young people. (Link)
Neuroanatomical Correlates of Intelligence. (Link)
Positive correlations between corpus callosum thickness and intelligence. (Link)
Relationships between IQ and regional cortical gray matter thickness in healthy adults. (Link)
Structural brain variation and general intelligence. (Link)
