Evidence map›Paper›PMID 18689678›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Dynamic changes in accumbens dopamine correlate with learning during intracranial self-stimulation.

Catarina A Owesson-White, Joseph F Cheer, Manna Beyene, Regina M Carelli, R Mark Wightman

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

82 citing papers in PubMed.

  1. Trial
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  3. Amphetamine modulates brain signal variability and working memory in younger and older adults.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Trial
  4. Article
  5. Article
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  9. Sensory cues potentiate VTA dopamine mediated reinforcement.bioRxiv : the preprint server for biology · 2023
    Article
  10. Review
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  14. Article
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22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Catarina A Owesson-WhiteDepartment of Psychology, University of North Carolina, Chapel Hill, NC 27599-3290, USA.
Joseph F Cheer
Manna Beyene
Regina M Carelli
R Mark Wightman

Funding

DYNAMICS OF IN VIVO DOPAMINE RELEASER01DA010900 · NIDA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI WIGHTMAN, ROBERT MARK · 1997 to 2017
$5.1M
Combined Voltammetry/Electrophysiology in Behaving RatsR01DA017318 · NIDA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI CARELLI, REGINA M · 2004 to 2013
$3.4M
NIDA NIH HHS DA10900NIDA NIH HHS DA 17318NIDA NIH HHS R01 DA010900NIDA NIH HHS R01 DA017318
6 · The paper itself

Abstract

Dopamine in the nucleus accumbens (NAc) is an important neurotransmitter for reward-seeking behaviors such as intracranial self-stimulation (ICSS), although its precise role remains unclear. Here, dynamic fluctuations in extracellular dopamine were measured during ICSS in the rat NAc shell with fast-scan cyclic voltammetry at carbon-fiber microelectrodes. Rats were trained to press a lever to deliver electrical stimulation to the substantia nigra (SNc)/ventral tegmental area (VTA) after the random onset of a cue that predicted reward availability. Latency to respond after cue onset significantly declined across trials, indicative of learning. Dopamine release was evoked by the stimulation but also developed across trials in a time-locked fashion to the cue. Once established, the cue-evoked dopamine transients continued to grow in amplitude, although they were variable from trial to trial. The emergence of cue-evoked dopamine correlated with a decline in electrically evoked dopamine release. Extinction of ICSS resulted in a significant decline in goal-directed behavior coupled to a significant decrease in cue-evoked phasic dopamine across trials. Subsequent reinstatement of ICSS was correlated with a return to preextinction transient amplitudes in response to the cue and reestablishment of ICSS behavior. The results show the dynamic nature of chemical signaling in the NAc during ICSS and provide new insight into the role of NAc dopamine in reward-related behaviors.

Indexed as

AnimalsDopamineElectrophysiologyLearningNucleus AccumbensRatsSelf StimulationDopamine

Identifiers

PMID18689678
PMCPMC2575325

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.