Schedule for Deficit Syndrome
Schedule for Deficit SyndromeAn instrument for dividing schizophrenic patients into those with or without deficit syndrome.
• Restricted affect;
• Diminished emotional range;
• Poverty of speec;
• Curbing of interests;
• Diminished sense of purpose;
• Diminished social drive.
Two or more negative symptoms (above) present for the preceding 12 months, and always present during periods of clinical stability.
Negative symptoms are primary—i.e., not secondary to factors other than the disease process (e.g., anxiety, drug effect, depression, suspiciousness and other psychotic symptoms).
Patient must be schizophrenic per DSM-IV criteria.