Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
GABA, or gamma-aminobutyric acid, is an inhibitory neurotransmitter in the brain. It reduces neural activity and helps to regulate anxiety and stress levels.