Neuropsychological Assessment of Dementia: Introduction | Neuropsychological Assessment in Geriatric Settings | Neuropsychology of Normal Aging | Differentiation of Alzheimer's Dementia | Vascular Dementia | Frontotemporal Lobar Dementia | Parkinson's Disease and Lewy Body Dementias | Geriatric Depression and Mood Disorders | Conclusion | Key Points | References | Suggested Readings
Alzheimer's disease is by far the most
common disorder of aging that causes dementia. Affecting nearly 10% of
the population over age 65, Alzheimer's disease is estimated
to have a prevalence of 25%–40% in those
age 85 years or older (Brayne 2007; Breitner 2006).
Because of its slow and insidious onset, the early stages of the
illness can be confused with relatively benign memory impairments
associated with normal aging.