What type of dementia involves fluctuating cognition and recurrent visual hallucinations?

Lewy body dementia is characterized by fluctuating cognition and recurrent visual hallucinations, making it the correct answer. This form of dementia presents unique cognitive fluctuations, where the individual may experience varying levels of alertness and attention, often shifting throughout the day. These fluctuations can significantly impact daily functioning and the individual's overall cognitive ability.

Additionally, recurrent visual hallucinations are a hallmark symptom of Lewy body dementia, which differs from other types of dementia. In this condition, hallucinations are not only common but can also be vivid and detailed. This sets Lewy body dementia apart from other types, which may exhibit different cognitive patterns and symptoms.

For example, vascular dementia is primarily caused by reduced blood flow to the brain due to strokes or other cardiovascular issues. While it can lead to cognitive decline, the symptoms do not typically include the notable visual hallucinations or the marked fluctuations in cognition seen in Lewy body dementia.

Parkinson's disease dementia can include hallucinations as well but usually occurs after a diagnosis of Parkinson's and may not initially present with fluctuating cognition as prominently as Lewy body dementia does.

Frontotemporal dementia generally affects personality and behavior more than cognition and does not involve the same type of visual hallucinations or cognitive fluctuations associated with Lewy body