AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

BIOLOGICAL PSYCHOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which neurotransmitter helps reduce the symptoms of Alzheimer’s disease?
A
Gamma-aminobutyric acid (GABA)
B
Serotonin
C
Norepinephrine
D
Acetylcholine
Explanation: 

Detailed explanation-1: -Acetylcholine is essential in learning and memory. However, despite correlation between cholinergic defect and intellectual impairment in Alzheimer’s disease, the effect of substitution therapy with cholinergics is very limited.

Detailed explanation-2: -Donepezil, rivastigmine and galantamine all prevent an enzyme called acetylcholinesterase from breaking down acetylcholine. This means there is a higher concentration of acetylcholine in the brain, which leads to better communication between nerve cells. This may ease some symptoms of Alzheimer’s disease for a while.

Detailed explanation-3: -Levels of one neurotransmitter, acetylcholine, are particularly low in the brains of people with Alzheimer’s disease. Over time, different areas of the brain shrink.

Detailed explanation-4: -Acetylcholine (ACh), a neurotransmitter essential for processing memory and learning, is decreased in both concentration and function in patients with Alzheimer’s disease.

Detailed explanation-5: -Acetylcholine is a chemical messenger, or neurotransmitter, that plays an important role in brain and muscle function. Imbalances in acetylcholine are linked with chronic conditions, such as Alzheimer’s disease and Parkinson’s disease.

There is 1 question to complete.