Lack of awareness of negative symptoms, often confused with anhedonia, is common in individuals with schizophrenia. Patients and relatives are often unaware of the extent of these symptoms and seldom communicate them to the clinician.
What follows are the 5 domains of negative symptoms identified from the Negative Symptom Assessment (NSA).
The NSA describes the behaviors that might be observed in each domain. Assessment starts with one question “Starting from the time you get up, could you tell me how you have spent a typical day in the past week?” From this one question, many different levels of clinical information can be gathered