Fig. 4
From: Divergent brain regional atrophy and associated fiber disruption in amnestic and non-amnestic MCI
Mediation analysis of the relationship between fiber bundle number, gray matter volume in the triangular part of the right inferior frontal gyrus, and cognitive tests. The values are absolute standardized beta estimates of each mediation model. The significant relationships between gray matter volume and attention (a, b) and executive function (c, d) are mediated by fiber bundle number; the significant relationships between fiber bundle number and visual ability (e) and language (f) are mediated by gray matter volume