Structural brain variation and general intelligence

@article{Haier2004StructuralBV,
  title={Structural brain variation and general intelligence},
  author={Richard J. Haier and Rex E. Jung and Ronald A. Yeo and Kevin Head and Michael T. Alkire},
  journal={NeuroImage},
  year={2004},
  volume={23},
  pages={425-433}
}
Total brain volume accounts for about 16% of the variance in general intelligence scores (IQ), but how volumes of specific regions-of-interest (ROIs) relate to IQ is not known. We used voxel-based morphometry (VBM) in two independent samples to identify substantial gray matter (GM) correlates of IQ. Based on statistical conjunction of both samples (N = 47; P < 0.05 corrected for multiple comparisons), more gray matter is associated with higher IQ in discrete Brodmann areas (BA) including… Expand

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