In order to develop a device that can be used to solve this problem, the psychological state of the wanderers must be understood. Dementia is defined as a clinical syndrome caused by a wide range of diseases that affect the brain. It is not a natural part of aging, but rather a symptom of a disease process. The majority of individuals with dementia experience emotional distress or behavioral problems as a result of a decline in cognition; the behavior is best described by the term agitation [3]. …show more content…
Dementia develops when parts of the brain associated with the cognitive functions are affected by any of various vascular, neurological, infectious, or metabolic diseases. The most common cause of dementia is Alzheimer’s disease (AD), and it is estimated that as many as 50% to 75% of individuals who suffer from dementia have AD [5]. Vascular dementia has until recently been considered responsible for most remaining cases of dementia, occurring either alone or in association with AD