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. 2009 Nov 30;106(52):22546–22551. doi: 10.1073/pnas.0906094106

Fig. 2.

Fig. 2.

Mental approximation skill correlates with FA in left aSLF. Scatterplots show the relationship between age-corrected mental arithmetic scores and age-corrected FA. The horizontal axes measure the residuals of math scores regressed on age. The vertical axes measure the residuals of FA regressed on age. (A) There is a significant correlation between approximation accuracy and FA in the left aSLF [n = 27, r (25) = 0.48, P = 0.01]. (B and C) Correlations between approximation accuracy and FA in the right aSLF [n = 28, r (26) = 0.32, P = 0.11]; and exact arithmetic accuracy and FA in the left aSLF [n = 27, r (25) = 0.35, P = 0.08] trended toward significance. (D) Exact arithmetic did not correlate with FA in the right aSLF [n = 28, r (26) = 0.04, n.s.].