Figure 2. Statistical parametric maps demonstrating structural changes after 7 days.

Figure 2 top: Statistical parametric maps demonstrating the transient structural changes after 7 days compared to time point one. A gray matter expansion between the first and the second scan was found in the midtemporal area (hMT/V5) on the right side, demonstrating that learning to juggle can change the gray matter in hMT/V5 as early as after 7 days of training. Note, that this change is a trend only (p<0.005, uncorrected). Figure 2 bottom: Box plot of the voxels of maximum intensity (right hMT/V5) representing the gray matter expansion over time.