The role of dopamine in sustained attention: Imaging the effects of methylphenidate in ADHD patients and healthy controls. - Natalia del Campo; Tim D. Fryer; Young T. Hong; David Izquierdo-Garcia; Rob Smith; Laurent Brichard; Sam Chamberlain; Jean-Claude Baron; Franklin I. Aigbirhio; Trevor W. Robbins; Barbara J. Sahakian; Ulrich Müller (NeuroImage, 2010)