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Addiction from the harmful dysfunction perspective: How there can be a mental disorder in a normal brain.

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Summary

Addiction is debated as a brain disease versus problematic choices. This analysis suggests addiction may be a motivational medical disorder, even without neurological dysfunction, impacting responsibility and control.

Keywords:
AddictionBrain disorderDiagnosisHarmful dysfunctionIntentionalityPhilosophy of psychiatrySubstance use disorder

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Area of Science:

  • Medical Philosophy
  • Neuroscience
  • Addiction Studies

Background:

  • Addiction is debated: is it a brain disease or a result of normal learning?
  • The National Institute on Drug Abuse (NIDA) views addiction as a brain disease due to observed brain changes.
  • Critics argue these changes stem from neuroplasticity, not disease, framing addiction as problematic choices.

Purpose of the Study:

  • To evaluate addiction's status as a medical disorder using the harmful dysfunction analysis.
  • To explore the evolutionary 'hijack' theory as an alternative explanation for addiction.
  • To examine the implications of addiction as a motivational disorder for social responsibility and control.

Main Methods:

  • Philosophical analysis of medical disorder criteria (harmful dysfunction analysis).
  • Critique of the brain disease model of addiction.
  • Evaluation of the evolutionary 'hijack' theory of addiction.

Main Results:

  • Even if brain changes are due to neuroplasticity, addiction is not necessarily a matter of nondisordered choice.
  • The evolutionary 'hijack' theory offers a framework for addiction as a motivational disorder.
  • This perspective suggests addiction can be a disorder without underlying neurological dysfunction.

Conclusions:

  • Addiction may be a distinct motivational medical disorder, independent of the brain disease model.
  • The 'hijack' theory reframes addiction, impacting views on personal responsibility and societal interventions.
  • Understanding addiction as a motivational disorder necessitates a re-evaluation of its causes and management.