levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine levels of serotonin and dopamine