18" from the Psychiatric Interview Series. Furthermore, the Psychiatric Interview Series is not a well-known or widely recognized source in the field of psychiatry.
To provide an accurate assessment of a specific case or diagnosis, a comprehensive evaluation by a qualified mental health professional is necessary. Diagnosing mental health conditions requires a thorough assessment, including a detailed psychiatric interview, medical history, observation of symptoms, and possibly psychological testing.
Catatonic schizophrenia is a subtype of schizophrenia characterized by catatonic symptoms, such as motor disturbances (stupor, rigidity, or excessive motor activity), negativism (resistance to instructions or attempts to be moved), mutism, and echolalia (repeating words or phrases of others). However, it's crucial to remember that schizophrenia itself is a complex and challenging condition to diagnose accurately.
If you have concerns about a specific case or diagnosis, I recommend consulting a qualified mental health professional who can provide personalized assessments and appropriate guidance based on the individual's unique circumstances.