![](https://i0.wp.com/braph.org/wp-content/uploads/2015/12/fig3-1.png?fit=660%2C489)
Figure 4: The group averages tab in the main panel shows the average and standard deviation for the data corresponding to each brain region for each group. Pushing \fbox{\texttt{Comparison}} also the differences between two groups can be visualized, together with their statistical significance calculated with a permutation test (in the screenshot 1000 permutations are used) in terms of single-tailed and double-tailed p-values.