A type of Schizophrenia in which symptoms that meet Criterion A are present, but the criteria are not met for the Paranoid, Disorganized, or Catatonic Type.
- Criterion A
- disorganized speech (e.g., frequent derailment or incoherence)
- grossly disorganized or catatonic behavior
- negative symptoms (e.g., affective flattening, alogia, or avolition)
- * Note: Only one Criterion A symptom is required if delusions are bizarre or hallucinations consist of a voice keeping up a running commentary on the person’s behavior or thoughts, or two or more voices conversing with each other.
- A Young Lady with Major Depressive Disorder finds relief. She also was diagnosed with Undifferentiated Type as well as a child.