RP-1 A person with schizophrenia who has (positive/negative) symptoms may have an expressionless face and toneless voice. These symptoms are most common with (chronic/acute) schizophrenia and are not likely to respond to drug therapy. Those with (positive/negative) symptoms are likely to experience delusions and to be diagnosed with (chronic/acute) schizophrenia, which is much more likely to respond to drug therapy.