A novel device called a "LifeShirt" -- a computerized vest that continuously monitors the patient's movements -- shows that patterns of movements differ between patients with schizophrenia and bipolar disorder. The device monitors hyperactive and repetitive movements, and collects data on respiration, heart rate and other physiological measures. While wearing the vest, subjects' movements were also recorded by a camera embedded in the ceiling, and the film of their exploratory behavior converted into movement patterns that characterize the manic phase of the disorder. Patients with bipolar disease exhibited hyperactivity and a wide range of exploration when in a novel environment, according to the researchers. Schizophrenic patients, on the other hand, exhibited much more restricted movements.