 [ Symptoms ] i need health insurance by jan 1 but it is going to take longer than that to work out how much assistance i will get  can i get a policy now and pay the full premium then after i get my assistance set up get a refund or credit for the extra money i paid for the premium to that point [ Disease ] it is likely that an imbalance in the complex interrelated chemical reactions of the brain involving the neurotransmitters dopamine and glutamate and possibly others plays a role in schizophrenia neurotransmitters are substances that allow brain cells to communicate with one another basic knowledge about brain chemistry and its link to schizophrenia is expanding rapidly and is a promising area of research