Genetic associations between intelligence and cortical thickness emerge at the start of puberty.

ABSTRACT: Cognitive abilities are related to (changes in) brain structure during adolescence and adulthood. Previous studies suggest that associations between cortical thickness and intelligence may be different at different ages. As both intelligence and cortical thickness are heritable traits, the question arises whether the association between cortical thickness development and intelligence is due to genes influencing both traits. We study this association in a longitudinal sample of young twins. Intelligence was assessed by standard IQ tests at age 9 in 224 twins, 190 of whom also underwent structural magnetic resonance imaging (MRI). Three years later at age 12, 177/125 twins returned for a follow-up measurement of intelligence/MRI scanning, respectively. We investigated whether cortical thickn

SUBMITTER: Brouwer RM 

PROVIDER: S-EPMC6868947 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature