title: Two-flash threshold in normal and subclassified schizophrenic groups.
mesh_terms: D000208:Acute Disease; D000328:Adult; D001143:Arousal; D002908:Chronic Disease; D004056:Differential Threshold; D004192:Discrimination, Psychological; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D011336:Probability; D012559:Schizophrenia; D012563:Schizophrenia, Paranoid; D014796:Visual Perception