Cited by 297Parkinson's Disease Mechanisms and TreatmentsNeurotransmitter Receptor Influence on BehaviorNeurological disorders and treatments

Cue-induced striatal dopamine release in Parkinson's disease-associated impulsive-compulsive behaviours

O'Sullivan, S. S., Wu, K., Politis, M., Lawrence, A. D., Evans, A. H., Bose, S. K., Djamshidian, A., Lees, A. J. +1 more·2011·Brain

Abstract

Impulsive-compulsive behaviours are a significant source of morbidity for patients with Parkinson's disease receiving dopaminergic therapy. The development of these behaviours may reflect sensitization of the neural response to non-drug rewards, similar to that proposed for sensitization to drug rewards in addiction. Here, by using (11)C-raclopride positron emission tomography imaging, we investigated the effects of reward-related cues and L-dopa challenge in patients with Parkinson's disease with and without impulsive-compulsive behaviours on striatal levels of synaptic dopamine. Eighteen patients (11 with and seven without impulsive-compulsive behaviours) underwent three (11)C-raclopride positron emission tomography scans. The impulsive-compulsive behaviours included hypersexuality, binge eating, punding, compulsive use of dopamine replacement therapy, compulsive buying and pathological gambling, with eight patients exhibiting more than one impulsive-compulsive behaviour. There were no significant differences in baseline dopamine D2 receptor availability between the Parkinson's disease groups. No differences were found when comparing the percentage change of raclopride binding potential between the two Parkinson's disease groups following L-dopa challenge with neutral cues. The group with Parkinson's disease with impulsive-compulsive behaviours had a greater reduction of ventral striatum (11)C-raclopride binding potential following reward-related cue exposure, relative to neutral cue exposure, following L-dopa challenge (16.3% compared with 5.8% in Parkinson's disease controls, P = 0.016). The heightened response of striatal reward circuitry to heterogeneous reward-related visual cues among a group of patients with different impulsive-compulsive behaviours is consistent with a global sensitization to appetitive behaviours with dopaminergic therapy in vulnerable individuals. Our findings are relevant for the broader debate on the relation between impulsive-compulsive behaviours and addictions and may have important implications with regards to advertisement legislation in an effort to prevent the onset of behavioural addictions.

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Crossref · 10.1093/brain/awr003

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Authors
O'Sullivan, S. S., Wu, K., Politis, M., Lawrence, A. D., Evans, A. H., Bose, S. K., Djamshidian, A., Lees, A. J., & Piccini, P.
Affiliations
  • Hammersmith Hospital (GB)
  • Cardiff University (GB)
  • The Royal Melbourne Hospital (AU)
  • University College London (GB)
Venue
Brain
Published
2011-02-24
Volume
134
Issue
4
Pages
969-978
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2120927079
Cited by
297
References
64
Citations by year
2026: 4 · 2025: 8 · 2024: 6 · 2023: 7 · 2022: 14 · 2021: 15 · 2020: 56 · 2019: 20 · 2018: 19 · 2017: 25 · 2016: 15 · 2015: 28 · 2014: 21 · 2013: 27 · 2012: 21
FWCI
16.25
Type
journal article
Language
en
Open access
closed
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Parkinson's UK (J-0704)
  • University of Illinois at Chicago
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
Parkinson's disease, dopamine release, striatum, ventral striatum, dopaminergic therapy, hypersexuality, binge eating, punding, gambling addiction, compulsive buying, behavioral addiction
MeSH terms
Aged, Brain Mapping, Compulsive Behavior, Corpus Striatum, Cues, Dopamine, Female, Humans, Impulsive Behavior, Male, Middle Aged, Parkinson Disease, Radionuclide Imaging

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