Although a small percentage of people with schizophrenia recover almost completely, the vast majority of patients have chronic, residual symptoms even with the best medical and psychiatric care. In fact, roughly 20% percent of patients with schizophrenia have symptoms of psychosis that don't respond to medication, and a greater number have so-called ‘negative' symptoms of schizophrenia which are not improved substantially even under ideal treatment conditions. Frustrations with learning and...

