Table 3.
Platelet serotonin in schizophrenia
| High platelet serotonin | Low platelet serotonin |
| Paranoid schizophrenia | Non-paranoid schizophrenia |
| Correlated with severity of auditory hallucinations | Correlated with lack of insight and with conceptual disorganization |
| Chronic active course | |
| Higher levels in spring in patients with positive symptoms | |
| Winter born patients |