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Serotonin Levels in AP Psychology

Written by the Fiveable Content Team
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team

Definition

Serotonin levels refer to the amount of serotonin, a neurotransmitter, present in the brain. This neurotransmitter plays a crucial role in regulating mood, sleep, appetite, and other physiological functions.

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