Cited by 66Cannabis and Cannabinoid ResearchPain Mechanisms and TreatmentsMemory and Neural Mechanisms

Evidence for differential modulation of conditioned aversion and fear‐conditioned analgesia by CB 1 receptors

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Finn, D. P., Beckett, S. R. G., Richardson, D., Kendall, D. A., Marsden, C. A., Chapman, V.·2004·European Journal of Neuroscience

Abstract

Fear-conditioned analgesia is an important survival response mediated by substrates controlling nociception and aversion. Cannabinoid(1) (CB(1)) receptors play an important role in nociception and aversion. However, their role in fear-conditioned analgesia has not been investigated. This study investigated the effects of systemic administration of the CB(1) receptor antagonist, SR141716A (1 mg/kg, i.p.), on fear-conditioned analgesia and conditioned aversion in rats. Twenty-four hours after receiving footshock, rats exhibited reduced formalin-evoked nociceptive behaviour, increased freezing and increased defecation when tested in the footshock apparatus, compared with non-footshocked formalin-injected rats. SR141716A attenuated fear-conditioned analgesia, freezing and defecation. Importantly, SR141716A had no effect on formalin-evoked nociceptive behaviour over an equivalent time period in rats not receiving footshock. SR141716A had no effect on contextually induced freezing during the first half of the test trial in rats receiving intra-plantar injection of saline. Administration of SR1417176A did, however, attenuate short-term extinction of contextually induced freezing and ultrasound emission in rats receiving intra-plantar saline, compared with vehicle-treated saline controls. These data suggest an important role for the CB(1) receptor in mediating fear-conditioned analgesia and provide evidence for differential modulation of conditioned aversive behaviour by CB(1) receptors during tonic, persistent pain.

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Crossref · 10.1111/j.1460-9568.2004.03509.x

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  • Infusing SR141716A directly into the BLA or mPFC is sufficient to impair cued fear extinction in rats.

    “Subsequent studies showed that infusing SR141716A directly into the BLA (or mPFC [90]) was sufficient to impair a cued fear extinction in rats [91,92].”

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Authors
Finn, D. P., Beckett, S. R. G., Richardson, D., Kendall, D. A., Marsden, C. A., & Chapman, V.
Affiliations
University of Nottingham (GB)
Corresponding author
Finn, D. P.
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2004-07-15
Volume
20
Issue
3
Pages
848-852
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2142509975
Cited by
66
References
30
Citations by year
2026: 3 · 2022: 1 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 2 · 2017: 4 · 2016: 1 · 2015: 5 · 2014: 3 · 2013: 4 · 2012: 2
FWCI
1.88
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Arrow@dit (Dublin Institute of Technology) (acceptedVersion)
  • ARAN (University of Galway Research Repository) (Ollscoil na Gaillimhe – University of Galway) (acceptedVersion, cc-by-nc-nd)
  • ARAN (University of Galway Research Repository) (Ollscoil na Gaillimhe – University of Galway) (submittedVersion, cc-by-nc-nd)
  • University of Galway Research Repository (submittedVersion, cc-by)
  • Research Repository UCD (University College Dublin) (cc-by)
Funders
Wellcome Trust
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
CB1 receptor, conditioned aversion, SR141716A, nociception, formalin-induced pain, footshock, freezing behavior, defecation, extinction
MeSH terms
Rimonabant, Analgesia, Analysis of Variance, Animals, Avoidance Learning, Behavior, Animal, Conditioning, Psychological, Fear, Male, Motor Activity, Pain Measurement, Piperidines, Pyrazoles, Time Factors, Receptor, Cannabinoid, CB1, Rats

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