Q: Which part (s) of the brain, when impaired by alcohol, play an important role in memory: •

a. Nucleus accumbens •

b. Hypothalamus •

c. Hippocampus •

d. All of the above.

The correct answer is hippocampus.

Hippocampus is the part of the human brain which deals with short-term and long-term memory, as well as your spatial navigation. So, when it is impaired by alcohol, it is not working properly, which is why sometimes people who drink at night cannot remember what they did the next morning.