Clinical Neuropsychologist, Psychologist
Amnesia is a severe disorder of memory.
Dementia is a gradually progressive impairment of two or more areas of thinking (eg memory, attention, language, spatial abilities etc) that is severe enough to affect a persons everyday living skills such as shopping, managing finances, cleaning, maintaining a job etc.
Amnesia can be a part of a dementia, especially in Alzheimer's disease and vascular dementia. However, a person may have dementia without having amnesia, for example in frontotemporal dementia.
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