This protocol also includes a study 100 non-schizophrenic children ages 6-13 with psychotic symptoms (e.g. hallucinations or delusions) to extend our studies of early neuro-developmental biomarkers and of the factors that either promote or stop the progression to full schizophrenia (resilience or conversion factors). These children will be recruited from the local community, evaluated as outpatients and followed prospectively for five years. Measures will include diagnostic interviews, clinical ratings, neurocognitive testing, anatomic and functional imaging, and blood for routine and genetic testing.