The purpose of this overview is to describe the psychological and beha
vioral symptoms of dementia reported in the professional literature in
recent years. This subject, a relatively neglected one, is considered
in order to focus attention on a number of the symptoms most troubles
ome to the demented person's surroundings which lead to his/her hospit
alization, with all the implications this has on the patients, their f
amilies and the community's health budget. To carry our an early and e
ffective intervention, professionals need to define and recognize thes
e symptoms and gain experience in treating them, either by interventio
n in the environment or by medication This survey attempts to examine
the state of the art in this field, while analyzing the difficulties t
hat emerge in studying it.