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Author Question: Explain why nicotine is now considered to be an addictive drug. What will be an ideal ... (Read 25 times)

casperchen82

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on: Jun 22, 2018
Explain why nicotine is now considered to be an addictive drug.
 
  What will be an ideal response?

Question 2

Explain how drugs of abuse may act via the same substrate engaged by natural rewards.
 
  What will be an ideal response?


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steff9894

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Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: Humans either smoke regularly or not at all. Smokers find it very difficult to stop smoking, even after suffering diseases that are directly related to smoking. Animals self-administer nicotine and this drug, like cocaine, activates dopamine processes within the nucleus accumbens.

Answer to Question 2

Answer: The mesolimbic dopamine system terminates in the nucleus accumbens. Food for a hungry rat and water for a thirsty rat cause the release of dopamine from the nucleus accumbens, as do drugs that are self-administered (e.g., cocaine and amphetamine).


casperchen82

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Reply 2 on: Jun 22, 2018
Gracias!

komodo7

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Reply 3 on: Yesterday
Excellent

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