Wiktionary
n. (context pathology English) A form of schizophrenia marked by disorganized behavior and speech as well as inappropriate emotional responses or affect.
WordNet
n. a form of schizophrenia characterized by severe disintegration of personality including erratic speech and childish mannerisms and bizarre behavior; usually becomes evident during puberty; the most common diagnostic category in mental institutions [syn: hebephrenia, hebephrenic schizophrenia, disorganized type schizophrenia]
Wikipedia
Disorganized schizophrenia, also known as hebephrenia, is a subtype of schizophrenia, although it is not recognized in the latest version of the Diagnostic and Statistical Manual of Mental Disorders.
Disorganized schizophrenia is thought to be an extreme expression of the disorganization syndrome that has been hypothesized to be one aspect of a three-factor model of symptoms in schizophrenia, the other factors being reality distortion (involving delusions and hallucinations) and psychomotor poverty (lack of speech, lack of spontaneous movement and various aspects of blunting of emotion).