E. Symptom(s) is not better explained by another mental disorder, including a depressive
or bipolar disorder with psychotic features , and is not attributable to the physiological
effects of a substance or another medical condition.
F. Criteria for any psychotic disorder have never been met.
Diagnostic Features
Attenuated psychotic symptoms, as defined in Criterion A, are psychosis-like but below the
threshold for a full psychotic disorder. Comp ared with psychotic disorders, the symptoms
are less severe and more transient, and insight is relatively maintained . A diagnosis of atten-
uated psychosis syndrome requires state psychopathology associated with functional
impairment rather than long-standing trait pathology. The psychopathology has not pro-
gressed to full psychotic severi ty. Attenuated psychosis syndrome is a disorder based on the
manifest pathology and impaired function and distress. Changes in experiences and behav-