title: Effects of age on the contingent negative variation and preparatory set in a reaction-time task.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D002540:Cerebral Cortex / Q000502:physiology; D003265:Contingent Negative Variation; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011930:Reaction Time; D012718:Set, Psychology; D013997:Time Factors