Gray matter, a part of the brain containing nerve cells, helps the brain control muscles, sensory perception, hearing, etc. Individuals with Schizophrenia display less gray matter volume (usually within the frontal and temporal lobes). The frontal and temporal lobes are mostly used for judgement and thinking, and someone with Schizophrenia may have impaired function of these lobes. White matter, found in the tissues of the brain, contain nerve cells and fibers. These fibers/cells signal all of the body’s movement and activities. For individuals with Schizophrenia, the white brain matter is damaged/altered, and research suggests that the changes in the white matter may contribute to Schizophrenia development.