Given the Inconsistent Evidence About Levels of Neurotransmitters in People

Multiple Choice

Given the inconsistent evidence about levels of neurotransmitters in people with mood disorders,researchers have begun to focus research efforts on

A) whether specific levels of serotonin or dopamine are important.
B) understanding the types of people who have no disturbances in their absolute levels of neurotransmitters.
C) finding a new neurotransmitter.
D) the sensitivity of postsynaptic receptors.