Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society
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The first part of the present review describes the current status of elderly people with behavioral and psychological symptoms of dementia (BPSD) in the community and basic viewpoints for differentiating between different forms of dementia. Specifically, it focuses on four points among the data and research related to determining the current status of elderly people with BPSD. We also propose basic concepts for differentiating between the core symptoms of dementia and BPSD, BPSD and delirium, and agitation and delirium. ⋯ When BPSD occurs in a person with dementia, the burden on caregivers increases. At such times, physicians tend to side with the family rather than with the patient. However, medical care is intended to be for the afflicted person, and physicians should base their plans for medical intervention on this principle.