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A conceptual framework for explaining drug addiction

N Heather1

  • 1Centre for Alcohol and Drug Studies, Newcastle City Health NHS Trust, Newcastle upon Tyne, UK.

Journal of Psychopharmacology (Oxford, England)
|May 19, 1998
PubMed
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Drug addiction is defined by repeated failures to quit drug use, requiring a multi-level explanatory framework. Existing theories inadequately address higher-level factors like failures of resolve in addiction.

Area of Science:

  • Neuroscience
  • Psychology
  • Addiction Studies

Background:

  • Current theories of drug addiction often fail to provide comprehensive explanations.
  • A clear and consistent definition of addiction is crucial for theoretical development.

Purpose of the Study:

  • To propose a conceptual framework for understanding drug addiction.
  • To define addiction based on behavioral criteria and failures of resolve.
  • To outline a multi-level explanatory model for addiction.

Main Methods:

  • Conceptual analysis and framework development.
  • Definition of addiction based on repeated failures to refrain from drug use.
  • Establishment of a three-level explanatory hierarchy: neuroadaptation, desire for drugs, and akrasia (failures of resolve).

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Main Results:

  • Addiction is best defined as repeated failures to abstain from drug use despite intentions to do so.
  • A three-level framework (neuroadaptation, desire, akrasia) is proposed for explaining addiction.
  • Explanations at lower levels (neuroadaptation) are insufficient for higher levels (desire, akrasia), necessitating additional determinants.

Conclusions:

  • Most existing addiction theories are inadequate due to insufficient focus on higher-level explanatory factors, particularly akrasia.
  • The concept of 'compulsive drug use' is deemed unhelpful for explaining addiction.
  • A comprehensive theory must integrate neurobiological, motivational, and volitional aspects of addiction.