Which of the following is responsible for neuronal degeneration in Alzheimer type dementia? A) Ubiquitin B) Amyloid C) Tau D) Prion Related MCQs: The incidence of dementia in 65 to 80 years old is approximately …….and ……. respectively? In early Alzheimer’s Disease, which is NOT a common symptom: Most current Alzheimer treatments work by altering levels of which neurotransmitter? What type of motivation is not applicable to young children?