Effects of GABA on Neuronal Activity

The nervous system is responsible for coordinating and regulating the body's responses to internal and external stimuli. Within the central nervous system (CNS), the brain plays a critical role in processing sensory information and orchestrating motor functions. Neurons, the fundamental units of the nervous system, communicate via synapses using neurotransmitters that can either excite or inhibit neighboring neurons.

A recent study examined the effects of a specific neurotransmitter, gamma-aminobutyric acid (GABA), on neuronal excitability and its implications for anxiety disorders. Researchers found that GABAergic neurons, which release GABA, predominantly function to inhibit excessive neuronal firing, thereby reducing overall brain excitability.

Considering the role of GABA as an inhibitory neurotransmitter, which statement best describes its effect on neuronal activity?