Cantello, R Major depression in Parkinson's disease and the mood response to intravenous methylphenidate: possible role of the "hedonic" dopamine synapse. [electronic resource] - Journal of neurology, neurosurgery, and psychiatry Jun 1989 - 724-31 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0022-3050 Standard No.: 10.1136/jnnp.52.6.724 doi Subjects--Topical Terms: AdultAgedArousal--drug effectsClinical Trials as TopicDepressive Disorder--psychologyDouble-Blind MethodEuphoria--drug effectsFemaleHumansInjections, IntravenousMaleMethylphenidate--pharmacologyMiddle AgedParkinson Disease--psychologyRandom AllocationReceptors, Dopamine--drug effectsTegmentum Mesencephali--drug effects