Cited by 598Neurobiology and Insect Physiology ResearchMemory and Neural MechanismsNeuroscience and Neuropharmacology Research

A Neural Circuit Mechanism Integrating Motivational State with Memory Expression in Drosophila

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Krashes, Michael J., DasGupta, Shamik, Vreede, Andrew, White, Benjamin, Armstrong, J. Douglas, Waddell, Scott·2009·Cell

Abstract

Behavioral expression of food-associated memory in fruit flies is constrained by satiety and promoted by hunger, suggesting an influence of motivational state. Here, we identify a neural mechanism that integrates the internal state of hunger and appetitive memory. We show that stimulation of neurons that express neuropeptide F (dNPF), an ortholog of mammalian NPY, mimics food deprivation and promotes memory performance in satiated flies. Robust appetitive memory performance requires the dNPF receptor in six dopaminergic neurons that innervate a distinct region of the mushroom bodies. Blocking these dopaminergic neurons releases memory performance in satiated flies, whereas stimulation suppresses memory performance in hungry flies. Therefore, dNPF and dopamine provide a motivational switch in the mushroom body that controls the output of appetitive memory.

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Crossref · 10.1016/j.cell.2009.08.035

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  • In insects, small populations of aminergic cells signal aspects of the state of the insect and provide reinforcement signals to the learning and memory centres of the mushroom bodies, so that the subjective meaning of objects in the environment to the organism can be learnt.

    “In insects, small populations of aminergic cells signal aspects of the state of the insect and also provide reinforcement signals to the learning and memory centres of the mushroom bodies [69,70], so that the subjective meaning of objects in the environment to the organism can be learnt [70–72].”

    From Phenomenal interface theory: a model for basal consciousness (2025) · cites this paper as [69]

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Research works printed but not linked: 3

  1. Dethier VG The Hungry Fly - a Physiological Study of the Behaviour 1976 Cambridge Harvard University Press
  2. Lorenz KZ The comparative method in studying innate behaviour patterns Physiological Mechanisms in Animal Behaviour 1950 Company of Biologists: Cambridge University Press
  3. Toates FM Motivational Systems 1986 Cambridge Cambridge University Press

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Authors
Krashes, M. J., DasGupta, S., Vreede, A., White, B., Armstrong, J. D., & Waddell, S.
Affiliations
  • Harvard University (US)
  • University of Massachusetts Chan Medical School (US)
  • National Institutes of Health (US)
  • University of Edinburgh (GB)
Corresponding author
Waddell, Scott
Venue
Cell
Publisher
Elsevier BV
Published
2009-10
Volume
139
Issue
2
Pages
416-427
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2168414233
Cited by
598
References
96
Citations by year
2026: 27 · 2025: 41 · 2024: 34 · 2023: 20 · 2022: 38 · 2021: 40 · 2020: 47 · 2019: 24 · 2018: 30 · 2017: 43 · 2016: 41 · 2015: 25 · 2014: 26 · 2013: 43 · 2012: 40
FWCI
16.35
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • The Journal of the American Medical Association (JAMA) Network (American Medical Association) (submittedVersion)
  • Bristol Research (University of Bristol) (submittedVersion)
Funders
  • National Institutes of Health (1f31mh009883-01)
  • National Institute of Mental Health (MH09883, R01MH069883, MH081982, R01MH081982)
  • National Institute on Drug Abuse (DA024499, F31DA024499)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
appetitive memory, hunger, satiety, motivational states, neuropeptide F, dopamine, dopaminergic neurons, mushroom body, memory expression, food deprivation, Drosophila
MeSH terms
Animals, Appetitive Behavior, Behavior, Animal, Conditioning, Classical, Dopamine, Drosophila melanogaster, Memory, Motivation, Neuropeptides, Receptors, Neuropeptide, Mushroom Bodies, Drosophila Proteins

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