Selective effects of methylphenidate in attention deficit hyperactivity disorder: A functional magnetic resonance study C HANDAN J. V AIDYA * † , G LENN A USTIN ‡ , G ARY K IRKORIAN ‡ H UGH W. R IDLEHUBER ‡ , J OHN E. D ESMOND * § , G ARY H. G LOVER § , AND J OHN D. E. G ABRIELI * ...