Version October 2024
| Negative symptom cluster | Negative symptom | As manifested by: |
| Diminished expression | Affective flattening | Unchanging facial expression |
| Little spontaneous movement | ||
| Little use of expressive gestures | ||
| Poor eye contact | ||
| Affective non-responsivity | ||
| Lack of vocal inflections | ||
| Alogia | Poverty of speech | |
| Thought blocking | ||
| Increased latency of response | ||
| Avolition-apathy | Apathy | Poor grooming and hygiene |
| Failure of appropriate role responsibilities | ||
| Anergy | ||
| Asociality/anhedonia | Failure to engage with peers socially | |
| No interest in stimulating activities | ||
| Little interest in sex | ||
| Little to no intimacy with others |
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