Cited by 75Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesRegulation of Appetite and Obesity

A genetically defined insula-brainstem circuit selectively controls motivational vigor

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Deng, Hanfei, Xiao, Xiong, Yang, Tao, Ritola, Kimberly, Hantman, Adam, Li, Yulong, Huang, Z. Josh, Li, Bo·2021·Cell

Abstract

The anterior insular cortex (aIC) plays a critical role in cognitive and motivational control of behavior, but the underlying neural mechanism remains elusive. Here, we show that aIC neurons expressing Fezf2 (aIC Fezf2), which are the pyramidal tract neurons, signal motivational vigor and invigorate need-seeking behavior through projections to the brainstem nucleus tractus solitarii (NTS). aIC Fezf2 neurons and their postsynaptic NTS neurons acquire anticipatory activity through learning, which encodes the perceived value and the vigor of actions to pursue homeostatic needs. Correspondingly, aIC → NTS circuit activity controls vigor, effort, and striatal dopamine release but only if the action is learned and the outcome is needed. Notably, aIC Fezf2 neurons do not represent taste or valence. Moreover, aIC → NTS activity neither drives reinforcement nor influences total consumption. These results pinpoint specific functions of aIC → NTS circuit for selectively controlling motivational vigor and suggest that motivation is subserved, in part, by aIC's top-down regulation of dopamine signaling.

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Crossref · 10.1016/j.cell.2021.11.019

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  • The aIC can causally regulate motivational vigor via its top-down projections to the NTS.

    “A recent study shows that the aIC can causally regulate motivational vigor via its top-down projections to the NTS [7].”
  • Inhibition or activation of neurons along the aIC-NTS pathway potently suppresses or heightens motivational vigor without affecting food or fluid consumption or valence processing.

    “Inhibition or activation of neurons along the aIC-NTS pathway potently suppresses or heightens, respectively, motivational vigor without affecting food or fluid consumption or valence processing, suggesting the specialized function of this insular circuit.”
  • Activation of the aIC-NTS pathway promotes dopamine release in the nucleus accumbens in a context-dependent manner.

    “Activation of the aIC-NTS pathway promotes dopamine release in the nucleus accumbens, a neural indicator of motivational level, in a context-dependent manner (Fig. 3E).”
  • The insula establishes direct long-range connections with the midbrain and hindbrain, such as the brainstem nucleus of the solitary tract (NTS).

    “Notably, the insula establishes direct long-range connections with the midbrain and hindbrain, such as the brainstem nucleus of the solitary tract (NTS), a major first relay for incoming body-to-brain information carried via the vagus nerve [7].”
  • Activation of the aIC-NTS pathway significantly invigorates need-seeking actions in a need- and learning-dependent manner, in both goal-directed licking and running tasks.

    “Activation of the aIC-NTS pathway significantly invigorates need-seeking actions in a need-and learning-dependent manner, in both goal-directed licking and running tasks (Fig. 3B-D).”

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Authors
Deng, H., Xiao, X., Yang, T., Ritola, K., Hantman, A., Li, Y., Huang, Z. J., & Li, B.
Affiliations
  • Cold Spring Harbor Laboratory (US)
  • Howard Hughes Medical Institute (US)
  • Peking University (CN)
  • Duke University (US)
Corresponding author
  • Deng, Hanfei
  • Li, Bo
Venue
Cell
Publisher
Elsevier BV
Published
2021-12
Volume
184
Issue
26
Pages
6344-6360.e18
ISSN
0092-8674 (ISSN-L)
OpenAlex
W4200110365
Cited by
75
References
90
Citations by year
2026: 18 · 2025: 15 · 2024: 16 · 2023: 16 · 2022: 9 · 2021: 1
FWCI
4.84
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (submittedVersion)
Funders
  • National Institutes of Health (R01MH101214, R01MH108924, R01DA050374, R01NS104944, U19MH114823-01)
  • Columbia University
  • Chinese Academy of Sciences
  • Cold Spring Harbor Laboratory
  • Oregon Health and Science University
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
anterior insula, nucleus tractus solitarius, pyramidal tract neurons, brainstem projections, anticipatory activity, effort, striatal dopamine release
MeSH terms
Insular Cortex, Animals, Behavior, Animal, Brain Stem, Dopamine, Female, Learning, Male, Mice, Inbred C57BL, Motivation, Neural Pathways, Neurons, Nucleus Accumbens, Time Factors, Mice

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