Which neurotransmitter is primarily associated with mood regulation, sleep, and appetite, and is implicated in depression?
ADopamine
BAcetylcholine
CSerotonin
DGABA
Explanation
Serotonin plays a major role in regulating mood, anxiety, and sleep; low levels are closely linked to clinical depression.
Exam Relevance
- Topic: Biological Psychology
- Subtopic: Neurotransmitters
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