Cited by 32Memory and Neural MechanismsNeural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on Behavior

Rhinal cortex ablations fail to disrupt reinforcer devaluation effects in rhesus monkeys (Macaca mulatta).

Thornton, J. A., Malkova, L., Murray, E. A.·1998·Behavioral Neuroscience

Abstract

Studies have shown that excitotoxic lesions of the amygdala attenuate reinforcer devaluation effects in monkeys and rats. Because the rhinal (i.e., entorhinal and perirhinal) cortex has prominent reciprocal connections with the amygdala and has been suggested to store knowledge about objects, it is possible that it too composes part of the critical circuitry subserving learning about objects and their associated reinforcement value. To test this possibility, rhesus monkeys with rhinal cortex removals as well as unoperated controls were tested using a reinforcer devaluation procedure. Monkeys with rhinal cortex removals and controls, unlike those with amygdala lesions, tended to avoid displacing objects overlying a devalued food. These results indicate that the rhinal cortex is not a critical part of the neural circuitry mediating the effects of reinforcer devaluation.

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Crossref · 10.1037/0735-7044.112.4.1020

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Authors
Thornton, J. A., Malkova, L., & Murray, E. A.
Affiliations
National Institutes of Health (US)
Venue
Behavioral Neuroscience
Published
1998
Volume
112
Issue
4
Pages
1020-1025
ISSN
  • 0735-7044 (ISSN-L)
  • 1939-0084
OpenAlex
W2049099656
Cited by
32
References
5
Citations by year
2026: 1 · 2025: 1 · 2022: 1 · 2021: 1 · 2018: 1 · 2013: 2
FWCI
2.43
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioral Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
reinforcer devaluation, rhinal cortex, entorhinal cortex, perirhinal cortex, amygdala, excitotoxic lesions, object learning, avoidance behavior, rhesus monkeys
MeSH terms
Analysis of Variance, Animals, Appetitive Behavior, Association Learning, Cerebral Cortex, Discrimination Learning, Food, Limbic System, Macaca mulatta, Neural Pathways, Reinforcement, Psychology, Satiation, Entorhinal Cortex

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