Psychoactive drugs produce their effects primarily by acting on brain neurotransmitters. Explain this process, using cocaine's effect on the brain as your example
What will be an ideal response?
Answer: A good answer will include the following key points.
? Psychoactive drugs produce their effects primarily by acting on brain neurotransmitters.
? A drug may increase or decrease the release of neurotransmitters at the synapse.
? A drug may prevent the reabsorption of excess neurotransmitter molecules by the cells that released them.
? A drug may interact with a receptor that would ordinarily be triggered by a neurotransmitter.
? For example, cocaine increases the amount of norepinephrine and dopamine in the brain by blocking their reabsorption.
? Cocaine also seems to increase the transmission of serotonin.
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