The document discusses the neuroanatomical explanation for schizophrenia which suggests that enlarged ventricles in the brain may be linked to the disorder. Several studies have found that schizophrenic patients tend to have larger ventricles compared to non-schizophrenic patients. However, the relationship between enlarged ventricles and schizophrenia is unclear as it is unknown whether enlarged ventricles cause schizophrenia or vice versa. There are also difficulties in determining what truly constitutes ventricle enlargement.