Figure 4.

(A) Change in mean percent signal change in the right anterior prefrontal cortex during incongruent flanker trials for the physical activity intervention group and wait-list control group. Error bars represent standard error. The decrease in activation for the physical activity intervention group led to mean percent signal change at post-test that did not differ from young adults. (B) Change in mean percent signal change in the anterior cingulate cortex during incongruent flanker trials for the physical activity intervention group and wait-list control group. Error bars represent standard error. No significant group differences were observed.