Cited by 476Neurotransmitter Receptor Influence on BehaviorSchizophrenia research and treatmentNeural and Behavioral Psychology Studies

The DOI matches its Crossref record; 60 of the 60 references it cites were found in a registry or an index.

Amphetamine-induced increases in extracellular dopamine, drug wanting, and novelty seeking: a PET/[11C] raclopride study in healthy men

Leyton, M·2002·Neuropsychopharmacology

Abstract

Eight healthy men underwent two positron emission tomography (PET) [11C]raclopride scans, one following placebo, the second following d-amphetamine (0.30 mg/kg, p.o.). PET data were analyzed using: (1) brain parametric maps to statistically generate regions of significant change; and (2) a priori identified regions of interest (ROI) manually drawn on each individual's co-registered magnetic resonance (MR) images. Compared with placebo, d-amphetamine decreased [11C]raclopride binding potential (BP) with significant effects in ventral but not dorsal striatum. Change in BP in the statistically generated cluster correlated with self-reported drug-induced 'drug wanting' (r = 0.83, p =.01) and the personality trait of Novelty Seeking-Exploratory Excitability (r = 0.79, p =.02). The same associations were seen in the manually drawn ROI in ventral striatum but not in dorsal putamen or caudate. Changes in extracellular dopamine (DA) did not correlate with mood. Mesolimbic DA might mediate interest in obtaining reward rather than reward, per se. Individual differences in amphetamine-induced DA release might be related to predispositions to drug and novelty seeking.

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Crossref · 10.1016/s0893-133x(02)00366-4

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Metadata

Authors
Leyton, M.
Affiliations
McGill University (CA)
Corresponding author
Leyton, M
Venue
Neuropsychopharmacology
Published
2002-12
Volume
27
Issue
6
Pages
1027-1035
ISSN
0893-133X (ISSN-L)
OpenAlex
W2071825212
Cited by
476
References
60
Citations by year
2026: 3 · 2025: 4 · 2024: 5 · 2023: 21 · 2022: 7 · 2021: 9 · 2020: 95 · 2019: 8 · 2018: 16 · 2017: 14 · 2016: 24 · 2015: 23 · 2014: 27 · 2013: 26 · 2012: 34
FWCI
4.53
Type
journal article
Language
en
Open access
closed
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research (36429, MOP–36429)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
amphetamine, extracellular dopamine, novelty seeking, [11C]raclopride, ventral striatum, mesolimbic dopamine system, individual differences, reward seeking, personality traits
MeSH terms
Adult, Amphetamine, Analysis of Variance, Corpus Striatum, Dopamine, Exploratory Behavior, Extracellular Space, Humans, Magnetic Resonance Imaging, Male, Tomography, Emission-Computed, Behavior, Addictive, Raclopride

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