Fig. 3
From: White matter microstructure is altered in cognitively normal middle-aged APOE-ε4 homozygotes
Effect of APOE on axial diffusivity (AxD) (from top to bottom: recessive and additive components). No dominant component was observed. Only contrast maps associated with higher AxD in ε4 carriers showed significant voxels. The white matter skeleton is shown in green. Suprathreshold clusters are presented in colors from dark red to white (1 − p > 0.95, familywise error rate- and threshold-free cluster enhancement-corrected)