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Addiction and the Brain: Development, Not Disease
1University of Toronto, 27 King's College Circle, Toronto, ON Canada.
Neuroethics
|July 21, 2017
Summary
The brain disease model of addiction is flawed, as addiction-related brain changes mirror those seen in habit formation and goal-seeking behaviors. Understanding addiction requires a developmental-learning perspective, not just a disease model.
Area of Science:
- Neuroscience
- Psychology
- Addiction Studies
Background:
- The prevailing brain disease model of addiction is widely accepted by medical, scientific, and clinical authorities.
- This model frames addiction as a chronic brain disorder, influencing treatment and public perception.
Purpose of the Study:
- To critically evaluate the brain disease model of addiction.
- To propose an alternative framework based on learning and neuroplasticity.
Main Methods:
- Review of scientific literature on addiction and neurobiology.
- Analysis of brain changes associated with motivated behavior, habit formation, and learning.
- Integration of concepts from self-organization, neuroplasticity, personality development, and delay discounting.
Main Results:
- Brain alterations in addiction are comparable to those in developing strong habits and goal-directed behaviors.
- Similar neural and behavioral patterns exist across substance addictions, behavioral addictions, compulsive behaviors, and falling in love.
- The rapid cycle of reward and negative emotion in addiction accelerates learning, while cortical changes in recovery offer further insights.
Conclusions:
- The disease model of addiction is insufficient and potentially misleading.
- Addiction can be better understood as a complex learning process shaped by neuroplasticity and motivated behavior.
- A developmental-learning orientation offers a more comprehensive perspective on addiction and recovery.
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