How does dopamine cause psychosis

Many things contribute to your defining characteristics.There's been a great deal of research into how psychosis affects the brain and how changes in the brain can trigger symptoms of psychosis.What does cocaine do to the brain to cause psychosis?It is interesting to note that in schizophrenia molecular imaging studies indicate there is an elevation in dopamine synthesis and release capacity, but unaltered dopamine transporter and d2/3 receptor availability in striatum.My doctor diagnosed a psychosis caused by an increased dopamine levels.The dopamine hypothesis of schizophrenia.

I am taking meds against the symptoms since 2013.First, it changes the amino acid tyrosine to a substance called dopa, and then into dopamine.The dopamine hypothesis of schizophrenia postulates that hyperactivity of dopamine d2 receptor neurotransmission in subcortical and limbic brain regions contributes to positive symptoms of schizophrenia.