Lewy Body Dementia

A type of progressive dementia caused by abnormal protein deposits called Lewy bodies in the brain. Lewy body dementia affects thinking, movement, behavior, and mood, and is the third most common cause of dementia after Alzheimer's disease and vascular dementia. Symptoms include fluctuating cognition, visual hallucinations, and parkinsonian motor features. From an accessibility perspective, the fluctuating nature of cognitive abilities makes consistent technology interaction particularly challenging and highlights the need for interfaces that adapt to varying levels of cognitive capacity.