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A New Understanding of Mental DisordersComputational Models for Dimensional Psychiatry$
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Andreas Heinz

Print publication date: 2017

Print ISBN-13: 9780262036894

Published to MIT Press Scholarship Online: May 2018

DOI: 10.7551/mitpress/9780262036894.001.0001

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Learning Mechanisms in Addictive Disorders

Learning Mechanisms in Addictive Disorders

Chapter:
(p.113) 8 Learning Mechanisms in Addictive Disorders
Source:
A New Understanding of Mental Disorders
Author(s):

Andreas Heinz

Publisher:
The MIT Press
DOI:10.7551/mitpress/9780262036894.003.0008

Addictive disorders may best be described as attribution of salience to drug-associated cues and drug consumption at the expense of other reinforcers. Dopamine and serotonin dysfunction can contribute to these states due to drug-associated neuroadaptation and alterations in bottom-up and top-down information processing. Relevant findings are described with respect to their computational and behavioral implications.

Keywords:   Addictive disorders, Salience, Drug consumption, Drug-associated cues, Dopamine, Serotonin, Neuroadaptation

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