Which changes in brain biochemical function is most associated with suicidal behavior?
a. Dopamine excess
b. Serotonin deficiency
c. Acetylcholine excess
d. Gamma-aminobutyric acid deficiency
ANS: B
Research suggests that low levels of serotonin may play a role in the decision to commit suicide. The other neurotransmitter alterations have not been implicated in suicidal crises.
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