Which statement BEST describes the relationship between neurotransmitters and unipolar depression?
A) Low activity of either serotonin or norepinephrine directly produces depression.
B) Low activity of serotonin causes a reduction in norepinephrine, which triggers depression.
C) Although neurotransmitters were once thought to play a role in depression, we now know that neurotransmitters do not play a role in depression.
D) It is unclear whether abnormal activity of neurotransmitters in the brain causes dysfunction of the depression-related brain circuit or is the result of it.

Question

Quizplus · Accepted Answer

The relationship between neurotransmitters and depression is complex and not fully understood. It is unclear whether abnormalities in neurotransmitter activity cause depression or are a result of depression, indicating a bidirectional or multifactorial relationship rather than a direct cause-and-effect scenario.

Which Statement BEST Describes the Relationship Between Neurotransmitters and Unipolar