Cited by 201Memory and Neural MechanismsNeurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology Studies

Effects of selective excitotoxic lesions of the nucleus accumbens core, anterior cingulate cortex, and central nucleus of the amygdala on autoshaping performance in rats.

Cardinal, Rudolf N., Parkinson, John A., Lachenal, Guillaume, Halkerston, Katherine M., Rudarakanchana, Nung, Hall, Jeremy, Morrison, Caroline H., Howes, Simon R. +2 more·2002·Behavioral Neuroscience

Abstract

The nucleus accumbens core (AcbC), anterior cingulate cortex (ACC), and central nucleus of the amygdala (CeA) are required for normal acquisition of tasks based on stimulus-reward associations. However, it is not known whether they are involved purely in the learning process or are required for behavioral expression of a learned response. Rats were trained preoperatively on a Pavlovian autoshaping task in which pairing a visual conditioned stimulus (CS+) with food causes subjects to approach the CS+ while not approaching an unpaired stimulus (CS-). Subjects then received lesions of the AcbC, ACC, or CeA before being retested. AcbC lesions severely impaired performance; lesioned subjects approached the CS+ significantly less often than controls, failing to discriminate between the CS+ and CS-. ACC lesions also impaired performance but did not abolish discrimination entirely. CeA lesions had no effect on performance. Thus, the CeA is required for learning, but not expression, of a conditioned approach response, implying that it makes a specific contribution to the learning of stimulus-reward associations.

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Crossref · 10.1037/0735-7044.116.4.553

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Authors
Cardinal, R. N., Parkinson, J. A., Lachenal, G., Halkerston, K. M., Rudarakanchana, N., Hall, J., Morrison, C. H., Howes, S. R., Robbins, T. W., & Everitt, B. J.
Affiliations
University of Cambridge (GB)
Venue
Behavioral Neuroscience
Published
2002
Volume
116
Issue
4
Pages
553-567
ISSN
  • 0735-7044 (ISSN-L)
  • 1939-0084
OpenAlex
W1980915028
Cited by
201
References
84
Citations by year
2025: 3 · 2024: 2 · 2023: 5 · 2022: 3 · 2021: 3 · 2020: 2 · 2019: 15 · 2018: 3 · 2017: 9 · 2016: 8 · 2015: 12 · 2014: 6 · 2013: 16 · 2012: 11
FWCI
4.21
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 › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
nucleus accumbens core, anterior cingulate cortex, central amygdala, excitotoxic lesions, autoshaping, classical conditioning, stimulus-reward associations, approach behavior, discrimination learning, conditioned stimulus, reward learning
MeSH terms
Amygdala, Animals, Cerebral Cortex, Conditioning, Classical, Discrimination Learning, Male, Nucleus Accumbens, Rats

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