title: Neurophysiological correlates of human concept formation.
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D001288:Attention / Q000502:physiology; D002540:Cerebral Cortex / Q000502:physiology*; D003210:Concept Formation / Q000502:physiology*; D003265:Contingent Negative Variation; D004594:Electrophysiology; D005071:Evoked Potentials; D005246:Feedback; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D014796:Visual Perception / Q000502:physiology*