Abstract
Objective: The purpose of this investigation was to determine whether there is an association between the putative reading disability (RD) susceptibility gene Doublecortin Domain Containing 2 (DCDC2), and gray matter (GM) distribution in the brain, in a sample of healthy control individuals. Method: Fifty-six control subjects were genotyped for an RD-associated deletion in intron 2 of DCDC2. Voxel based morphometry (VBM) was used to examine structural magnetic resonance imaging (MRI) scans to assess GM differences between the two groups. Results: Individuals heterozygous for the deletion exhibited significantly higher GM volumes in reading/language and symbol-decoding related brain regions including superior, medial and inferior temporal, fusiform, hippocampal/parahippocampal, inferior occipito-parietal, inferior and middle frontal gyri, especially in the left hemisphere. GM values correlated with published data on regional DCDC2 expression in a lateralized manner. Conclusions: These data suggest a role for DCDC2 in GM distribution in language-related brain regions in healthy individuals.
Original language | English (US) |
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Pages (from-to) | 21-26 |
Number of pages | 6 |
Journal | Brain Imaging and Behavior |
Volume | 2 |
Issue number | 1 |
DOIs | |
State | Published - Mar 2008 |
Externally published | Yes |
Keywords
- Dyslexia
- Language
- Polymorphism
- Structural imaging
- VBM
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Neurology
- Cognitive Neuroscience
- Clinical Neurology
- Cellular and Molecular Neuroscience
- Psychiatry and Mental health
- Behavioral Neuroscience