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Addictive Behaviours

Addictive Behaviours: evaluating those explanations and evaluating those methods

  • 3 things to know
  • A2 Unit 3 Section A

Overview

Recall questions on evaluating those explanations and evaluating those methods.

What you need to know

Answer each one before you reveal it.

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Key term

Explain how aversion therapy uses disulfiram to treat alcohol dependence.

Evaluation

Explain how the biological explanation leads to agonist substitution while the learning account leads to aversion therapy.

Key term

How does a diathesis-stress model reconcile the three sets of explanations?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Why are biological explanations of addiction criticised as reductionist?

    Model answer

    They reduce a behaviour with social, economic and psychological roots to genes or a single neurotransmitter system, and cannot explain why most people exposed to a drug never become addicted.

  2. 2

    How does a diathesis-stress model reconcile the three sets of explanations?

    Model answer

    Biological and personality factors supply a vulnerability while social factors such as peers, media and adversity supply the stressor, so addiction develops only where the two coincide.

  3. 3

    Explain how the biological explanation leads to agonist substitution while the learning account leads to aversion therapy.

    Model answer

    If dependence rests on altered receptor systems, the logical treatment acts on those same receptors; if it was acquired by association and reinforcement, the logical treatment builds a new, aversive association.

  4. 4

    How does agonist substitution work, and give two examples.

    Model answer

    An agonist binds to and activates the same receptors as the drug, suppressing withdrawal and craving without the same intoxication or harm, as in methadone or buprenorphine for opioid dependence and nicotine replacement for smoking.

  5. 5

    How does an antagonist differ from an agonist in treating addiction?

    Model answer

    An antagonist such as naltrexone occupies the receptor without activating it, so if the person does use, the drug produces no reward and relapse is not reinforced.

  6. 6

    Explain how aversion therapy uses disulfiram to treat alcohol dependence.

    Model answer

    Disulfiram blocks the breakdown of acetaldehyde, so drinking causes flushing, nausea and vomiting, and alcohol is repeatedly paired with illness until it provokes an aversive response on its own.

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