Cited by 283Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchNeural and Behavioral Psychology Studies

Neural and Behavioral Plasticity Associated with the Transition from Controlled to Escalated Cocaine Use

Open access
Ferrario, Carrie R., Gorny, Grazyna, Crombag, Hans S., Li, Yilin, Kolb, Bryan, Robinson, Terry E.·2005·Biological Psychiatry

Abstract

Background Rats given extended access to cocaine develop several symptoms of addiction, including a gradual escalation of drug intake, whereas rats given limited access do not. We asked here whether extended access to cocaine also produces drug-induced sensitization, a form of neurobehavioral plasticity implicated in addiction.Methods Rats were given limited (1 hour/session) or extended access (6 hours/session) to self-administered cocaine. Following a period of abstinence, rats were selected at random for assessment of their psychomotor response to cocaine or drug-seeking during extinction or for anatomic studies.Results When re-exposed to cocaine, rats allowed extended drug access showed greater drug-seeking behavior and were hypersensitive (sensitized) to the psychomotor activating effects of cocaine compared with rats given limited access. Extended access to cocaine was also associated with a greater increase in the density of dendritic spines on neurons specifically in the core of the nucleus accumbens (and not in the shell or medial or orbital frontal cortex).Conclusions The transition from stable to escalated cocaine use, a hallmark of addiction, is associated with especially robust behavioral sensitization and synaptic reorganization in the core of the nucleus accumbens.

Integrity signals

Registry

Crossref · 10.1016/j.biopsych.2005.04.046

Cites

57 of 57 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

1 of the 58 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Ferrario, C. R., Gorny, G., Crombag, H. S., Li, Y., Kolb, B., & Robinson, T. E.
Affiliations
  • University of Michigan (US)
  • University of Lethbridge (CA)
Corresponding author
Robinson, Terry E.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2005-11
Volume
58
Issue
9
Pages
751-759
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2022992863
Cited by
283
References
58
Citations by year
2026: 5 · 2025: 4 · 2024: 4 · 2023: 10 · 2022: 4 · 2021: 19 · 2020: 12 · 2019: 12 · 2018: 8 · 2017: 8 · 2016: 13 · 2015: 14 · 2014: 14 · 2013: 26 · 2012: 19
FWCI
6.84
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Figshare (submittedVersion, cc-by)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
cocaine, extended access, restricted access, drug-seeking behavior, behavioral sensitization, nucleus accumbens core, dendritic spines, synaptic plasticity, addiction, locomotor sensitization, self-administration, extinction
MeSH terms
Animals, Behavior, Animal, Cocaine, Conditioning, Operant, Dendrites, Dose-Response Relationship, Drug, Male, Motor Activity, Neuronal Plasticity, Nucleus Accumbens, Reinforcement, Psychology, Self Administration, Stereotyped Behavior, Rats, Wistar, Prefrontal Cortex, Head Movements, Cocaine-Related Disorders, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review