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. 2015 Mar 14;7:782–787. doi: 10.1016/j.nicl.2015.03.006

Fig. 2.

Fig. 2

Patterns of gray matter asymmetry in ALS and control subjects. Selected axial plane reconstructions from 17 right-handed controls (Row A), 15 ALS subjects with a right-sided index limb (Row B), and 15 ALS subjects with a left-sided index limb (Row C). Significant regions of GM asymmetry (p ≤ 0.01, TFCE-corrected) are shown. Regions coloured in orange-yellow represent leftward asymmetry (i.e. higher GM density in the left hemisphere), whereas blue clusters signify rightward asymmetry. In control subjects, there is a cluster of leftward GM asymmetry which incorporates the centre-of-gravity of the dominant thenar representation area (shown by the intersection of the two red lines). PreCG = precentral gyrus; PostCG = postcentral gyrus; PCG = posterior cingulate gyrus; STG = superior temporal gyrus; TTG = transverse temporal gyrus; IFG = inferior frontal gyrus; OG = orbital gyrus; RG = rectal gyrus; Thal = thalamus.