Barbiturates primarily affect which type of neurotransmitter?

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The correct choice regarding the primary effect of barbiturates on neurotransmitters is inhibitory neurotransmitters. Barbiturates are a class of central nervous system depressants that enhance the activity of gamma-aminobutyric acid (GABA), which is the primary inhibitory neurotransmitter in the brain. By facilitating GABA's action, barbiturates increase neuronal inhibition, leading to sedative and anxiolytic effects.

This means that the use of barbiturates results in a calming effect and a reduction in the excitability of the nervous system, which is a hallmark of their pharmacological action. Understanding this inhibitory action is crucial for recognizing how barbiturates can affect mood, anxiety levels, and overall brain function, which is particularly relevant in the context of chemical dependency counseling.

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