The hallmark of Dementia is the decreased ability to conduct everyday activities compared with past performance as a result of diminished cognitive ability. The definition of Dementia as defined by Alzheimer’s Australia is:

“Dementia is the term used to describe the symptoms of a large group of illnesses which cause a progressive decline in a person’s functioning. It is a broad term used to describe a loss of memory, intellect, rationality, social skills and physical functioning. Alzheimer’s disease is the most common form of dementia, accounting for between 50-70% of all dementia cases”.

There are many types of Dementia and while the effects of each type are similar, they are not identical, as each one tends to affect different areas of the brain. The most common types of dementia are:

  • Alzheimer’s disease
  • Vascular dementia
  • Dementia with Lewy Bodies
  • Alcohol related dementia –  Korsakoff’s Syndrome
  • AIDS related dementia
  • Fronto Temporal Lobar Degeneration (FTLD)
  • Creutzfeldt-Jakob Disease

For more information on the types of Dementia click here.