Schizophrenia : Positive and Negative Symptoms

what is Schizophrenia?

Criteria A symptoms:

criteria B : Social/Occupational Dysfunction?

Criteria C : Duration

Positive symptoms of Schizophrenia

Negative symptoms of Schizophrenia

Positive Symptoms: Hallucinations

Positive Symptom: Delusions

Negative Symptoms: Alogia (Speech Poverty)

Negative Symptoms: Avolition

Issues With Diagnosis- Reliability

Issues with Diagnosis- Validity

Key Study- Rosenhan (1973)