Cited by 704Regulation of Appetite and ObesityNeurotransmitter Receptor Influence on BehaviorMemory and Neural Mechanisms

Neurons for hunger and thirst transmit a negative-valence teaching signal

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Betley, J. Nicholas, Xu, Shengjin, Cao, Zhen Fang Huang, Gong, Rong, Magnus, Christopher J., Yu, Yang, Sternson, Scott M.·2015·Nature

Abstract

Homeostasis is a biological principle for regulation of essential physiological parameters within a set range. Behavioural responses due to deviation from homeostasis are critical for survival, but motivational processes engaged by physiological need states are incompletely understood. We examined motivational characteristics of two separate neuron populations that regulate energy and fluid homeostasis by using cell-type-specific activity manipulations in mice. We found that starvation-sensitive AGRP neurons exhibit properties consistent with a negative-valence teaching signal. Mice avoided activation of AGRP neurons, indicating that AGRP neuron activity has negative valence. AGRP neuron inhibition conditioned preference for flavours and places. Correspondingly, deep-brain calcium imaging revealed that AGRP neuron activity rapidly reduced in response to food-related cues. Complementary experiments activating thirst-promoting neurons also conditioned avoidance. Therefore, these need-sensing neurons condition preference for environmental cues associated with nutrient or water ingestion, which is learned through reduction of negative-valence signals during restoration of homeostasis.

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  • AgRP and NOS1 neurons show heightened activity during hunger and thirst, their activity elicits an aversive state, and they are essential for driving feeding and drinking behaviors.

    “A potentially similar function has been described for arcuate nucleus AgRP neurons and nitric oxide synthase 1 (NOS1) neurons in the subfornical organ (SFO). These neurons show heightened activity during hunger (AgRP) and thirst (NOS1), their activity elicits an aversive state (place avoidance), and they are essential for driving feeding and drinking behaviors, respectively21,227.”

    From Neural mechanisms of social homeostasis (2019) · cites this paper as [227]

  • AgRP activity is rapidly suppressed on sensory detection of food, suggesting that ongoing AgRP activity is dispensable for food consumption.

    “However, AgRP activity is rapidly suppressed on sensory detection of food227,228,230, which, surprisingly, suggests that ongoing AgRP activity is dispensable for food consumption.”

    From Neural mechanisms of social homeostasis (2019) · cites this paper as [227]

  • AgRP neurons are activated in energy deficit, and their optical stimulation promotes food consumption but also elicits real-time place avoidance in the absence of food.

    “AgRP neurons are activated in a state of energy deficit228, and their optical stimulation can voraciously promote food consumption, but also elicits real-time place avoidance (indicative of an aversive state) in the absence of food173,227,229.”

    From Neural mechanisms of social homeostasis (2019) · cites this paper as [227]

  • A mouse may subsequently avoid a flavor that was paired with the AgRP neuronal stimulation that made it eat, leading some authors to suggest that stimulated hunger is necessarily an aversive drive that the mouse later associates with the flavor.

    “However, a mouse may subsequently avoid a flavor that was paired with the AgRP neuronal stimulation that made it eat, leading some authors to suggest that stimulated hunger is necessarily an aversive drive that the mouse later associates with the flavor (Betley et al., 2015).”

    From Evolving Concepts of Emotion and Motivation (2018) · cites this paper as Betley et al., 2015

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Authors
Betley, J. N., Xu, S., Cao, Z. F. H., Gong, R., Magnus, C. J., Yu, Y., & Sternson, S. M.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Sternson, Scott M.
Venue
Nature
Published
2015-04-27
Volume
521
Issue
7551
Pages
180-185
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2101995469
Cited by
704
References
49
Citations by year
2026: 32 · 2025: 73 · 2024: 70 · 2023: 68 · 2022: 50 · 2021: 72 · 2020: 65 · 2019: 73 · 2018: 64 · 2017: 62 · 2016: 54 · 2015: 21
FWCI
37.15
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
Howard Hughes Medical Institute
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
hunger, thirst, homeostasis, AgRP neurons, subfornical organ, negative valence, teaching signal, motivation in learning, avoidance conditioning, energy homeostasis, fluid homeostasis
MeSH terms
Animals, Cues, Dehydration, Drinking, Eating, Food, Food Preferences, Homeostasis, Hunger, Hypothalamus, Male, Neurons, Starvation, Thirst, Models, Animal, Mice, Agouti-Related Protein

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