Case Study 203: Lewy Body Dementia Not all dementia is Alzheimer’s. In fact, Lewy Body Dementia is one of the most common causes of progressive cognitive decline and it affects thinking, movement, and perception all at once. This condition is linked to abnormal protein deposits called alpha-synuclein that disrupt communication between brain cells. Key features to know: • Fluctuating attention - sharp in the morning, confused by afternoon • Lifelike visual hallucinations - people, animals, or fig