Luz is exploring the role of neurotransmitters in anxiety disorders. Which neurotransmitter is known for its inhibitory effects and is often targeted in anxiety treatments?
Explanation & Rationale
Choice A reason: Glutamate is the primary excitatory neurotransmitter in the brain, promoting neuronal activity. It is not typically targeted for its inhibitory effects in anxiety treatments, as excessive glutamate activity may contribute to heightened anxiety or overstimulation. Choice B reason: Dopamine is involved in reward, motivation, and movement regulation. While imbalances in dopamine can play a role in some psychiatric conditions, it is not the primary neurotransmitter targeted for its inhibitory effects in anxiety disorders. Choice C reason: Gamma-aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the brain, helping to calm neuronal activity and reduce anxiety. Many anti-anxiety medications, such as benzodiazepines, enhance GABA’s effects to promote relaxation and reduce symptoms of anxiety. Choice D reason: Norepinephrine is an excitatory neurotransmitter associated with the body’s stress response and arousal. Elevated levels are often linked to increased anxiety, so it is not targeted for inhibitory effects in anxiety treatments.