Definition of "hebephrenia" []

• A type of schizophrenia characterized by foolish mannerisms, senseless laughter, delusions, hallucinations, and regressive behavior. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "His more debilitating behavior, which they called hebephrenia—characterized by delusions and inappropriate laughing—probably would not respond to brain surgery, they said, whereas the operation might be more effective in treating his obsessive-compulsive behavior."
• "Criteria for subtyping schizophrenia: Clinical differentia tion of hebephrenia and paranoid schizophrenia."
• "The earlier literature used paranoid versus nonparanoid (e.g., hebephrenia) (1003) to characterize this dichotomy, whereas the modern literature often refers to it as positive-symptom versus negative-symptom schizophrenia (51)."