NotesFAQContact Us
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ781874
Record Type: Journal
Publication Date: 2008
Pages: 11
Abstractor: Author
Reference Count: 0
ISSN: ISSN-0160-2896
Cognitive Abilities Independent of IQ Correlate with Regional Brain Structure
Johnson, Wendy; Jung, Rex E.; Colom, Roberto; Haier, Richard J.
Intelligence, v36 n1 p18-28 Jan-Feb 2008
There is increasing evidence relating psychometric measures of general intelligence and reasoning to regional brain structure and function assessed with a variety of neuroimaging techniques. Cognitive dimensions independent of general intelligence can also be identified psychometrically and studied for any neuroanatomical correlates. Here we investigated two such dimensions, rotation-verbal and focus-diffusion. We used structural MRI and voxel-based morphometry (VBM) in two independent samples to identify gray and white matter correlates of both dimensions. Based on statistical conjunction of both samples, (N=45; p less than 0.001), there were correlations with gray matter in Brodmann areas (BA) 20 and 9 involving the rotation-verbal dimension and in BA 18 involving the focus-diffusion dimension. There were white matter correlations involving the rotation-verbal dimension near BA 18, 40, 39, 10, 8, and 4 and involving the focus-diffusion dimension near BA 5 and the right sub-lobar amygdala. These correlations may have implications for understanding individual differences in the manifestation of intelligence.
Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A