I see that the conversation has switched to dopamine. There is an interesting tie in here with Parkinson's Disease,which I gather is due to a lack of dopamine, one treatment being administration of L-Dopa medication or its equivalent. And if the dosage is computed erroneously, an excess of this can lead to psychotic symptoms. One member of our family with Parkinsons and on L-Dopa said that he believed he was in a beautiful garden while sitting in his kitchen.
So dopamine has a link to hallucinatory psychosis. This is interesting stuff and may make things difficult for those who argue that alcoholism cannot be an illness in the same way Parkinsons or Diabetes is. That folks suffering from it are normal except that they suffer from a difficult "Beast".
W.