Fig. 3.

Activation maps during passive and active40 stepping. Top row: Regions of significant BOLD signal increase during passive (a) and active40 (b) stepping at session 1 (t₁) and 2 (t₂), and their overlap. Bottom row: Areas of significantly higher BOLD signal increase at either t₁ or t₂ for passive (c) and active40 (d). Time between t₁ and t₂ ranged between 42 and 48 days. The sections were taken at the z-coordinate indicated at the bottom left of each section, images are displayed in neurological convention (i.e., left is left), p ≤ 0.001, cluster corrected, k = 42 voxels