Body image is defined as a 'constant transactional relationship' between the body and its internal and external environment. An attempt is made to clarify two aspects of this ego function: the layering of the components of the body image and the extension of the body image to space around the body. The layering of components and the 'transactional matrix' are concepts used to explain changes in body image and regression. Space around the body or 'the body buffer zone' is seen as an entity in nonpsychotics but is most strikingly observed in schizophrenics. This space is variable and held in high personal regard.