title: Cerebral potentials preceding and accompanying verbal and spatial tasks.
mesh_terms: D000293:Adolescent; D000328:Adult; D001921:Brain / Q000502:physiology*; D003265:Contingent Negative Variation; D004594:Electrophysiology; D006801:Humans; D011597:Psychomotor Performance / Q000502:physiology*; D014956:Writing