FIGURE 8-21 Correlations Between Gray Matter Thickness and Behavior (A) Red shading corresponds to regions showing significant cortical thinning correlated with improved motor skills. (B) White shading corresponds to regions showing significant cortical thickening correlated with improved language skills. (C) Red shading shows regions of decreased cortical thickness correlated with improved vocabulary scores.

(A) and (B) Research from L. H. Lu, C. M. Leonard, P. M. Thompson, E. Kan, J. Jolley, et al. (2007). Normal developmental changes in inferior frontal gray matter are associated with improvement in phonological processing: A longitudinal MRI analysis. Cerebral Cortex, 17, pp. 1092–1099. (C) Research from Elizabeth R. Sowell, Paul M. Thompson, Christiana M. Leonard, Suzanne E. Welcome, Eric Kan, and Arthur W. Toga. Longitudinal MAPping of Cortical Thickness and Brain Growth in Normal Children. J. Neurosci. 2004 24: 8223–8231. Figure 9.