Cited by 199Neural and Behavioral Psychology StudiesSubstance Abuse Treatment and OutcomesNeurotransmitter Receptor Influence on Behavior

Abnormal frontal activations related to decision-making in current and former amphetamine and opiate dependent individuals

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Ersche, K. D., Fletcher, P. C., Lewis, S. J. G., Clark, L., Stocks-Gee, G., London, M., Deakin, J. B., Robbins, T. W. +1 more·2005·Psychopharmacology

Abstract

Rationale There is converging evidence for impairments in decision-making in chronic substance users. In the light of findings that substance abuse is associated with disruptions of the functioning of the striato-thalamo-orbitofrontal circuits, it has been suggested that decision-making impairments are linked to frontal lobe dysfunction. We sought to investigate this possibility using functional neuroimaging.Methods Decision-making was investigated using the Cambridge Risk Task during H2(15)O PET scans. A specific feature of the Risk Task is the decisional conflict between an unlikely high reward option and a likely low reward option. Four groups, each consisting of 15 participants, were compared: chronic amphetamine users, chronic opiate users, ex-drug users who had been long-term amphetamine/opiate users but are abstinent from all drugs of abuse for at least 1 year and healthy matched controls without a drug-taking history.Results During decision-making, control participants showed relatively greater activation in the right dorsolateral prefrontal cortex, whereas participants engaged in current or previous drug use showed relatively greater activation in the left orbitofrontal cortex.Conclusion Our results indicate a disturbance in the mediation by the prefrontal cortex of a risky decision-making task associated with amphetamine and opiate abuse. Moreover, this disturbance was observed in a group of former drug users who had been abstinent for at least 1 year.

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  • Perturbation of cognitive control is a hallmark of addiction.

    “converging evidence that perturbation of cognitive control is a hallmark of addiction (Ersche et al., 2005; Garavan and Stout, 2005; Wilson et al., 2007).”

    From Impulsivity, frontal lobes and risk for addiction (2009) · cites this paper as Ersche et al., 2005

  • Neuroimaging studies have found abnormal orbitofrontal cortex function associated with substance abuse.

    “numerous neuroimaging studies have found abnormal OFC function associated with substance abuse (Boettiger et al., 2007; Dom et al., 2005; Ersche et al., 2005; London et al., 2000; Volkow and Fowler, 2000).”

    From Impulsivity, frontal lobes and risk for addiction (2009) · cites this paper as Ersche et al., 2005

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Authors
Ersche, K. D., Fletcher, P. C., Lewis, S. J. G., Clark, L., Stocks-Gee, G., London, M., Deakin, J. B., Robbins, T. W., & Sahakian, B. J.
Affiliations
  • University of Cambridge (GB)
  • Brookfields Hospital (GB)
Corresponding author
Sahakian, B. J.
Venue
Psychopharmacology
Published
2005-03-15
Volume
180
Issue
4
Pages
612-623
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W2059944696
Cited by
199
References
70
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 7 · 2022: 3 · 2021: 5 · 2020: 8 · 2019: 10 · 2018: 7 · 2017: 7 · 2016: 13 · 2015: 13 · 2014: 12 · 2013: 14 · 2012: 16
FWCI
6.62
Type
journal article
Language
en
Open access
Locations
  • Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Wellcome Trust (019407, 064351)
  • Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
decision-making, amphetamine dependence, opioid use disorder, former drug users, orbitofrontal cortex, dorsolateral prefrontal cortex, risky decision making, frontal lobe dysfunction, drug abstinence
MeSH terms
Adult, Analysis of Variance, Brain Mapping, Decision Making, Female, Humans, Male, Memory, Short-Term, Middle Aged, Opioid-Related Disorders, Neuropsychological Tests, Psychomotor Performance, Time Factors, Prefrontal Cortex, Age of Onset, Amphetamine-Related Disorders, Positron-Emission Tomography

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