Antipsychotic Discontinuation in High-risk Subjects

* Would be there any difference in dopamine synthesis between remitted clinical high risk subjects for psychosis and healthy control? * What would happen to dopamine synthesis after antipsychotic discontinuation in clinical high risk subjects for psychosis? * What about the dopamine synthesis in recurred clinical high risk subjects for psychosis after the discontinuation?

After the antipsychotic medication discontinuation, we are going to assess the changes of the biological markers