Fig. 2: Associations of hair mercury level with regional gray matter volume (rGMV)(N = 920). | Communications Biology

Fig. 2: Associations of hair mercury level with regional gray matter volume (rGMV)(N = 920).

From: Mercury levels in hair are associated with reduced neurobehavioral performance and altered brain structures in young adults

Fig. 2

Greater hair mercury level was significantly associated with lower rGMV in the area of the left thalamus and left hippocampus. Colored bars indicate threshold-free cluster enhancement (TFCE) scores. TFCE score is unit-free and reflects both voxel’s height and the sum of the spatially contiguous voxels supporting it; therefore, it reflects both the strength and extent of effects. All results are overlaid on a “single-subject T1” SPM8 image. a Regions with significant results. The results shown were obtained using a threshold P < 0.05, corrected for multiple comparisons based on 5000 permutations using the TFCE score. b A partial residual plot with the trend line depicting the associations between residuals of mean rGMV in the significant cluster and the residuals of the logarithms of hair mercury levels with other confounding factors controlled.

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