Mace, Janet L The effects of acute tryptophan depletion on neuropsychological function, mood and movement in the healthy elderly. [electronic resource] - Journal of psychopharmacology (Oxford, England) Oct 2011 - 1337-43 p. digital Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1461-7285 Standard No.: 10.1177/0269881110389094 doi Subjects--Topical Terms: AffectAge FactorsAgedAged, 80 and overCognitionCross-Over StudiesDouble-Blind MethodFemaleHumansMaleMemoryMiddle AgedPsychomotor PerformanceSerotonin--physiologyTryptophan--deficiency