The effects of amygdala lesions on conditioned stimulus- potentiated eating in rats.
Abstract
Both control rats and rats with neurotoxic lesions of the amygdala central nucleus ate more food during presentations of a conditioned stimulus (CS) previously paired with food than during an unpaired CS. This potentiation occurred regardless of whether the food was presented in its usual place or in a different location. By contrast, rats with neurotoxic lesions of basolateral amygdala showed no evidence for conditioned potentiation of eating. These results are considered in the context of anatomical projections from these amygdalar areas to other brain regions involved in feeding, and the role of amygdala subregions in the acquisition of motivational value in conditioning.
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If extra pairing with food consumption while hungry is given, then later the Pavlovian food cue can evoke conditioned eating even if encountered when the rat is no longer hungry.
“However, if that extra pairing with food consumption while hungry is given, then later the Pavlovian food cue can evoke conditioned eating even if encountered when the rat is no longer hungry (Weingarten, 1983; Holland et al., 2002; Petrovich, 2011).”
From Evolving Concepts of Emotion and Motivation (2018) · cites this paper as Holland et al., 2002
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References 73 · Cited by 117
- Authors
- Holland, P. C., Petrovich, G. D., & Gallagher, M.
- Affiliations
- Duke University (US)
- Johns Hopkins University (US)
- Corresponding author
- Holland, Peter C
- Venue
- Physiology & Behavior
- Publisher
- Elsevier BV
- Published
- 2002-05
- Volume
- 76
- Issue
- 1
- Pages
- 117-129
- ISSN
- 0031-9384 (ISSN-L)
- OpenAlex
- W2027159964
- Cited by
- 117
- References
- 73
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 2 · 2023: 1 · 2022: 4 · 2021: 2 · 2020: 1 · 2019: 7 · 2018: 7 · 2017: 6 · 2016: 2 · 2015: 7 · 2014: 5 · 2013: 5 · 2012: 6
- FWCI
- 2.86
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physiology & Behavior (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health
- National Institute of Mental Health (R01MH060179, MH53667, MH 60179)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Keywords
- amygdala, conditioned stimulus, central amygdala, basolateral amygdala, neurotoxic lesion, dietary intake, motivational value, feeding behavior, food location, rats
- MeSH terms
- Amygdala, Animals, Conditioning, Operant, Consummatory Behavior, Discrimination Learning, Eating, Male, Weight Gain, Rats, Long-Evans, Rats
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