The multidisciplinary nature of gerontology manner that there are some of sub-fields which overlap with gerontology. There are policy issues, for example, concerned in authorities making plans and the operation of nursing homes, investigating the outcomes of an getting older populace on society, and the design of residential areas for older human beings that facilitate the development of a sense of area or home. Dr. Lawton, a behavioral psychologist on the Philadelphia Geriatric Center, become many of the first to understand the want for residing areas designed to deal with the elderly, mainly those with Alzheimer's disorder. As an educational area the field is surprisingly new. The USC Leonard Davis School created the first PhD, grasp's and bachelor's diploma packages in gerontology in 1975.