Activation of reward circuitry in human opiate addicts.
Détails
ID Serval
serval:BIB_7B708703584C
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Activation of reward circuitry in human opiate addicts.
Périodique
European Journal of Neuroscience
ISSN
0953-816X (Print)
ISSN-L
0953-816X
Statut éditorial
Publié
Date de publication
1999
Volume
11
Numéro
3
Pages
1042-1048
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
The neurobiological mechanisms of opiate addictive behaviour in humans are unknown. A proposed model of addiction implicates ascending brainstem neuromodulatory systems, particularly dopamine. Using functional neuroimaging, we assessed the neural response to heroin and heroin-related cues in established opiate addicts. We show that the effect of both heroin and heroin-related visual cues are maximally expressed in the sites of origin of ascending midbrain neuromodulatory systems. These context-specific midbrain activations predict responses to salient visual cues in cortical and subcortical regions implicated in reward-related behaviour. These findings implicate common neurobiological processes underlying drug and drug-cue-related effects.
Mots-clé
Adult, Brain Chemistry/drug effects, Brain Stem/cytology, Brain Stem/drug effects, Heroin/administration & dosage, Heroin Dependence/physiopathology, Heroin Dependence/radionuclide imaging, Humans, Interneurons/chemistry, Interneurons/drug effects, Male, Mesencephalon/cytology, Mesencephalon/drug effects, Narcotics/administration & dosage, Neural Pathways, Pain Measurement, Parietal Lobe/cytology, Parietal Lobe/drug effects, Photic Stimulation, Reward, Tomography, Emission-Computed, gamma-Aminobutyric Acid/physiology
Pubmed
Web of science
Création de la notice
16/09/2011 17:16
Dernière modification de la notice
20/08/2019 15:37