Cited by 61Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesMemory and Neural Mechanisms

The role of nucleus accumbens dopamine in outcome encoding in instrumental and Pavlovian conditioning

Lex, Bjoern, Hauber, Wolfgang·2010·Neurobiology of Learning and Memory

Abstract

Considerable evidence suggests that dopamine in the core subregion of the nucleus accumbens is not only involved in Pavlovian conditioning but also supports instrumental performance. However, it is largely unknown whether NAc dopamine is required for outcome encoding which plays an important role both in Pavlovian stimulus-outcome learning and instrumental action-outcome learning. Therefore, we tested rats with 6-hydroxydopamine (6-OHDA) induced dopamine depletion of the NAc core for their sensitivity to outcome devaluation in a Pavlovian and an instrumental task. Results indicate that 6-OHDA-lesioned animals were sensitive to outcome devaluation in an instrumental task. This finding provides support to the notion that NAc core dopamine may not be crucial in encoding action-outcome associations. However, during instrumental conditioning lever pressing rates in 6-OHDA-lesioned animals were markedly lower which could reflect an impaired behavioral activation. By contrast, after outcome-specific devaluation in a Pavlovian task, performance in 6-OHDA-lesioned animals was impaired, i.e. their magazine-directed responding was non-selectively reduced. One possibility to explain non-selective responding is that NAc core DA depletion impaired the ability of conditioned stimuli to activate the memory of the current value of the reinforcer.

Integrity signals

Registry

Crossref · 10.1016/j.nlm.2009.11.002

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

This paper’s full text isn’t openly available, 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

Cited by

Sorted by citations

Authors
Lex, B., & Hauber, W.
Affiliations
University of Stuttgart (DE)
Corresponding author
Hauber, Wolfgang
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2010-02
Volume
93
Issue
2
Pages
283-290
ISSN
1074-7427 (ISSN-L)
OpenAlex
W1994772681
Cited by
61
References
55
Citations by year
2024: 1 · 2023: 3 · 2022: 4 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 5 · 2016: 4 · 2015: 4 · 2014: 6 · 2013: 6 · 2012: 10
FWCI
3.04
Type
journal article
Language
en
Open access
closed
Locations
  • Neurobiology of Learning and Memory (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft (HA2340/8-2)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
nucleus accumbens core, dopamine, outcome devaluation, classical conditioning, operant conditioning, 6-hydroxydopamine lesion, action-outcome associations, lever pressing, behavioral activation
MeSH terms
Analysis of Variance, Animals, Conditioning, Classical, Conditioning, Operant, Dopamine, Immunohistochemistry, Male, Neuropsychological Tests, Neurotoxins, Nucleus Accumbens, Reward, Tyrosine 3-Monooxygenase, Oxidopamine, 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