🧠ap psychology review

Neurotransmitter Imbalance

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

Neurotransmitter imbalance refers to an abnormality in the levels or functioning of neurotransmitters, which are chemical messengers that transmit signals between nerve cells in the brain. This imbalance can disrupt normal brain communication and contribute to various mental health conditions.

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