Relationship between intelligence and the size and composition of the corpus callosum.
Exp Brain Res
; 192(3): 455-64, 2009 Jan.
Article
em En
| MEDLINE
| ID: mdl-18949469
ABSTRACT
We investigated the relationship between the morphology of the corpus callosum (CC) and IQ in a healthy sample of individuals in their late teens and early twenties. The relationship between the area of the CC, measured at the midline, and IQ showed regional differences. We observed that a higher estimated performance IQ was associated with smaller area in the posterior regions of the CC, a finding that differs from a positive association previously observed in a somewhat older adult sample. In contrast, higher estimated verbal IQ was associated with decreased fractional anisotropy of the genu, an anterior portion of the CC. Age effects were also observed such that older age was associated with larger CC area. Our results suggest that CC morphology is related to cognitive performance, which may have implications for clinical populations in whom CC morphology is atypical.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Córtex Cerebral
/
Corpo Caloso
/
Inteligência
/
Lateralidade Funcional
/
Fibras Nervosas Mielinizadas
Tipo de estudo:
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Exp Brain Res
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Austrália