Model-Free and Model-Based Influences in Addiction-Related Behaviors
Groman SM, Massi B, Mathias SR, Lee D, Taylor JR. Model-Free and Model-Based Influences in Addiction-Related Behaviors. Biological Psychiatry 2019, 85: 936-945. PMID: 30737015, PMCID: PMC6534429, DOI: 10.1016/j.biopsych.2018.12.017.Peer-Reviewed Original ResearchConceptsDecision-making taskModel-based behaviorModel-free learningModel-based learningAbility of ratsChronic drug useUnrewarded outcomesIndividual differencesDrug-induced disruptionHabitual systemAddiction vulnerabilityModel-free reinforcementBehavioral platformAction selectionDrug useSubsequent methamphetamineCore featuresLearning mechanism