Q. Alzheimer disease in humans is associated with the deficiency of :
(a) Gamma amino butyric acid (GABA)
(b) Dopamine
(c) Glutamic acid
(d) Acetylcholine
Solution : Correct option : D In studies related to Alzheimer disease, Acetylcholine (ACh), a neurotransmitter essential for processing memory and learning, has been found decreased in both concentration and function in patients with Alzheimer’s disease.