Evidence map›Paper›PMID 36322185›Full record

ArticlePsychopharmacology2023

Medial orbitofrontal cortical regulation of different aspects of Pavlovian and instrumental reward seeking.

Nicole L Jenni, Nicola Symonds, Stan B Floresco

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Article in Psychopharmacology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

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0cells of the map it votes in
3citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Nicole L JenniDepartment of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2136 West Mall, Vancouver, B.C, V6T 1Z4, Canada.
Nicola SymondsDepartment of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2136 West Mall, Vancouver, B.C, V6T 1Z4, Canada.
Stan B FlorescoDepartment of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, 2136 West Mall, Vancouver, B.C, V6T 1Z4, Canada. floresco@psych.ubc.ca.ORCID http://orcid.org/0000-0002-5633-243X

Funding

Natural Sciences and Engineering Research Council of Canada RGPIN-2018-04295
6 · The paper itself

Abstract

rationaleThe medial subregion of the orbitofrontal cortex (mOFC) is thought to play an important role representing the expected outcome of a given course of action, as lesioning or inactivating this cortical region results in the adoption of choice strategies based more on observable (rather than previously learned) information. Despite this, its role in mediating basic associative learning remains to be fully clarified.

objectiveThe present series of experiments examined the role of the mOFC in (1) Pavlovian conditioned approach, (2) conditioned reinforcement, (3) extinction, and (4) cue-induced reinstatement of food-seeking behavior.

methodsSeparate cohorts of rats went through Pavlovian or instrumental training. Intra-mOFC infusions of either saline or GABA agonists (to temporarily inactivate neural activity) were given prior to Pavlovian approach, conditioned reinforcement, first or second day of instrumental extinction training, or cue-induced reinstatement test days.

resultsmOFC inactivation increased lever-CS contacts in Pavlovian conditioned approach and (2) had no effect on conditioned reinforcement. These manipulations (3) accelerated within-session instrumental extinction during the initial extinction session, but impaired subsequent extinction learning on drug-free days. (4) mOFC inactivation induced differential effects on reinstatement that depended on baseline performance. mOFC inactivation abolished reinstatement in "Reinstater" rats (who displayed robust responding under control conditions) and robustly increased reinstatement in "Non-Reinstater" rats (who showed little reinstatement under control conditions) suggesting that individual differences in reinstatement may be supported by differences in mOFC mediated representations of expected outcomes.

conclusionsThese findings have important implications for understanding how the mOFC uses stimulus-outcome and action-outcome expectancies to guide behavior, and how dysfunction within this region may contribute to pathological patterns of reward seeking.

Indexed as

CuesExtinction, PsychologicalAnimalsConditioning, OperantPrefrontal CortexRatsReinforcement, PsychologyRewardExtinctionInstrumentalMedial orbitofrontal cortexPavlovianReinstatementReward

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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.