Mainstream research has shown that biological as well as sociocultural influences are important contributors to the disease, with current research focusing on the biochemical and genetic factors of brain neurophysiology. Some claim that current diagnostic criteria lack objectivity and consider the state of schizophrenia to be controversial. Although the name schizophrenia literally means a split mind, it is not the same as a “split personality” and should not be confused with dissociative identity disorders, as some articles, films, or popular culture generally do. Schizophrenia is also not associated with a predilection for violent behavior. Although psychotic states often leave patients in need of psychiatric assistance, schizophrenic patients are not always in this psychotic state.