Cited by 206Biochemical Analysis and Sensing TechniquesRegulation of Appetite and ObesityOlfactory and Sensory Function Studies

The responsiveness of neurons in the insular gustatory cortex of the macaque monkey is independent of hunger

Yaxley, Simon, Rolls, Edmund T., Sienkiewicz, Zenon J.·1988·Physiology & Behavior

Abstract

(1) In order to determine whether the responsiveness of neurons in the insular gustatory cortex is influenced by hunger, neuronal activity was analysed in it while macaque monkeys (Macaca fascicularis) were fed to satiety. The responses of single neurons in the insular gustatory cortex to the protypical taste stimuli glucose, NaCl, HCl and quinine HCl, and to fruit juice, were measured before, while, and after the monkey was fed to satiety with glucose or fruit juice. (2) While behavior turned from avid acceptance to active rejection upon repletion, the responsiveness of the neurons to the stimulus array, including the satiating solution, was unmodified. (3) It is concluded that in the insular gustatory cortex, neuronal responses to gustatory stimuli are not influenced by the normal transition from hunger to satiety. This is in contrast to the responses of a population of neurons recorded in the hypothalamus, which only respond to the taste of food when the monkey is hungry. Thus the neurons in the insular gustatory cortex are involved in a motivation-independent analysis of gustatory stimuli, whereas the hypothalamic neurons may be more closely related to the influence of motivational state on behavioral responsiveness to gustatory stimuli.

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Crossref · 10.1016/0031-9384(88)90074-1

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  • The insular primary taste cortex represents what the taste is independently of its reward value.

    “the insular primary taste cortex represents what the taste is independently of its reward value (Yaxley et al., 1988; Rolls, 2015, 2016c, 2019c).”

    From The orbitofrontal cortex: reward, emotion and depression (2020) · cites this paper as Yaxley et al., 1988

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Authors
Yaxley, S., Rolls, E. T., & Sienkiewicz, Z. J.
Affiliations
University of Oxford (GB)
Corresponding author
Rolls, Edmund T.
Venue
Physiology & Behavior
Publisher
Elsevier BV
Published
1988-01
Volume
42
Issue
3
Pages
223-229
ISSN
0031-9384 (ISSN-L)
OpenAlex
W2007316161
Cited by
206
References
45
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 3 · 2022: 2 · 2021: 7 · 2020: 5 · 2019: 4 · 2018: 5 · 2017: 5 · 2016: 10 · 2015: 10 · 2014: 6 · 2013: 3 · 2012: 9
FWCI
3.12
Type
journal article
Language
en
Open access
closed
Locations
  • Physiology & Behavior (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Biochemical Analysis and Sensing Techniques
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
Keywords
hunger, satiety, taste neurons, single-unit activity, macaque, food motivation, hypothalamic neurons, taste stimuli, glucose, fruit juice
MeSH terms
Amygdala, Animals, Brain Mapping, Frontal Lobe, Hunger, Hypothalamus, Macaca fascicularis, Male, Neural Pathways, Neurons, Satiation, Taste, Thalamic Nuclei

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