Explore the Biological Bases of Behavior Test. Prepare with engaging flashcards and multiple choice questions, each featuring explanations. Start practicing today!

Multiple Choice

Which class of drugs reduces neural activity and slows body functions, including alcohol and barbiturates?

Depressants slow neural activity and bodily functions. They typically increase the brain’s inhibitory signaling, especially via GABA, which dampens neuron firing and leads to slower thinking, impaired coordination, and reduced respiration. Alcohol and barbiturates are classic examples of this class, producing drowsiness, relaxed muscles, and slowed reflexes. The other options describe different effects: stimulants boost neural activity and alertness; hallucinogens alter perception; opioids primarily affect pain pathways and reward, though they can also depress the CNS, they’re usually talked about as a separate category from depressants.

Depressants slow neural activity and bodily functions. They typically increase the brain’s inhibitory signaling, especially via GABA, which dampens neuron firing and leads to slower thinking, impaired coordination, and reduced respiration. Alcohol and barbiturates are classic examples of this class, producing drowsiness, relaxed muscles, and slowed reflexes. The other options describe different effects: stimulants boost neural activity and alertness; hallucinogens alter perception; opioids primarily affect pain pathways and reward, though they can also depress the CNS, they’re usually talked about as a separate category from depressants.