What effect does Parkinson's disease have on life and cognitive functions?

Parkinson's disease. Parkinson's disease is considered a movement disorder associated with a deficiency of the neurotransmitter dopamine. This is an oversimplified definition. The initial symptoms of parkinson's disease usually involve involuntary tremors and rigidity. The initial manifestations usually involve difficulty with motor function. Cognitive decline is usually a late manifestation.

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I'm wondering what effect does Parkinson's disease have on intelligence and cognitive functions?

Parkinson dementia. Parkinson disease can be associated with cognitive impairment including problems with memory, judging and problem solving, decreased ability to deal with finances, and sometimes increased napping during the day, visual hallucinations. This is called parkinson disease dementia (pdd) and looks a lot like lewy body dementia to the point that they are considered a spectrum. Read more...