Subsequent 2-sample t tests for this ROI showed a trend for greater SFG activation in the MPH group compared to the placebo group ( t (25) = 2.81, P FWE = .09) at the second fMRI appointment, while no significant differences were observed at the first appointment (all P FWE > .1).
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Increase or Decrease of fMRI Activity in Adult Attention Deficit/ Hyperactivity Disorder: Does It Depend on Task Difficulty?
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