title: Supplementary motor area activation preceding externally triggered movements.
authors.forename: J A
authors.initials: JA
authors.lastname: Obeso
authors.forename: J L
authors.initials: JL
authors.lastname: Labres
authors.forename: F
authors.initials: F
authors.lastname: Barajas
authors.forename: E
authors.initials: E
authors.lastname: Enriquez
mesh_terms: D000161:Acoustic Stimulation; D006801:Humans; D009044:Motor Cortex / Q000098:blood supply / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D012039:Regional Blood Flow