Brain activation maps of task contrasts, by group. Images are horizontal slices 5 mm apart and start at z = −30 mm from the top left to z = +65 mm on the bottom right. Images are in radiological convention: left side of the images corresponds to the right hemisphere. Image parameters are as follows: nominal z = 6.0, cluster = 25, corrected p < 0.05 for multiple comparisons. Positive activation foci only are shown. Panel 1a: TBI group, Imagery – Repetition. 1b: TBI group, Repetition – Imagery. 1c: NC group, Imagery – Repetition. 1d: NC group, Repetition – Imagery. Please see Tables 3 and 4 for listings of activation foci.