A person suspected of having unipolar depression has a smaller-than-normal hippocampus, although it produces a normal number of new neurons. This is:
A) normal.
B) unusual; those with unipolar depression usually have a smaller-than-normal hippocampus, causing it to produce a low number of new neurons.
C) unusual; those with unipolar depression usually have a normal-sized hippocampus, causing it to produce a low number of new neurons.
D) very unusual; those with unipolar depression usually have a normal-sized hippocampus, causing it to produce a normal number of new neurons.

Question

Quizplus · Accepted Answer

Research has shown that individuals with unipolar depression often have a smaller-than-normal hippocampus, although the production of new neurons remains normal. This is why option B is the best answer. Options A, C, and D are all incorrect because they do not reflect the current research on the relationship between hippocampus size and depression.

A Person Suspected of Having Unipolar Depression Has a Smaller-Than-Normal