Dr.Miller was lecturing on dopamine as the key neurotransmitter of reward and addiction;her main points were that rats will not press a lever for amphetamines or cocaine if given a drug that ___ dopamine activity,and the same drug will block the ___ effects of ESB.

Question

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The lecture is discussing how dopamine is the key neurotransmitter of reward and addiction, and the statement indicates that a drug is needed to either increase or decrease dopamine activity. In this case, the drug that blocks dopamine activity is effective in preventing rats from pressing a lever for amphetamines or cocaine. Additionally, this same drug also blocks the rewarding effects of ESB. Therefore, the best choice is B, which means to "antagonize" dopamine activity.

DrMiller Was Lecturing on Dopamine as the Key Neurotransmitter of Reward