DLB is the second most prevalent cause of dementia in elderly individuals, after Alzheimer’s disease. This condition causes a gradual decline in cognitive and functional abilities.
In addition to Parkinson’s-like symptoms, people with DLB often experience frequent changes in their thinking ability and level of attention, as well as visual hallucinations. Unlike Parkinson's disease, individuals with DLB usually do not experience significant tremors.
Treatment of DLB's Parkinsonian symptoms may or may not respond to levodopa.