FIG. 2.

Between group differences in left dorsal anterior cingulate cortex (ACC) relative cerebral blood flow (rCBF). Adolescents with sports-related concussion (SRC, white boxes) had significantly higher rCBF than never-concussed controls (gray boxes) in the left dorsal ACC at Visit 1 (≤ two weeks post-injury) and Visit 2 (six weeks post-injury). These differences persisted when analyses controlled for age. No differences existed in rCBF between Visits 1 and 2 in the SRC group.

^*Indicates p < 0.05. Error bars represent standard deviation.