É mais um tipo de demência (que pode representar 15% dos casos e que por vezes é mal diagnosticada - como foi para este famoso actor):
http://metro.co.uk/2016/10/02/a-terrorist-inside-my-husbands-brain-robin-williams-wife-details-the-last-months-of-the-comedians-life-6165686/
Citando:
"Dementia with Lewy bodies (DLB) is a type of dementia that shares symptoms with both Alzheimer’s disease and Parkinson’s disease.
It may account for 10-15 per cent of all cases of dementia.
DLB can be diagnosed wrongly and is often mistaken for Alzheimer’s disease.
Lewy bodies are the cause of DLB and Parkinson’s disease. They are two of several diseases caused by Lewy bodies that affect the brain and nervous system and get worse over time. These are sometimes called Lewy body disorders.
The way someone is affected by DLB will depend partly on where the Lewy bodies are in the brain:
Lewy bodies at the base of the brain are closely linked to problems with movement (motor symptoms). These are the main feature of Parkinson’s disease.
Lewy bodies in the outer layers of the brain are linked to problems with mental abilities (cognitive symptoms), which is a feature of DLB.
Symptons include problems with mental abilities, such as staring into space for a long time or periods when speech is disorganised; depression; day-to-day memory loss; hallucinations and delusions; movement problems; sleep disturbance; a loss of smell; urinary incontinence.
via alzheimers.org.uk"
