Cited by 168Neurobiology and Insect Physiology ResearchMemory and Neural MechanismsVestibular and auditory disorders

The Neuroanatomical Ultrastructure and Function of a Biological Ring Attractor

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Turner-Evans, Daniel B., Jensen, Kristopher T., Ali, Saba, Paterson, Tyler, Sheridan, Arlo, Ray, Robert P., Wolff, Tanya, Lauritzen, J. Scott +3 more·2020·Neuron

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Abstract

Neural representations of head direction (HD) have been discovered in many species. Theoretical work has proposed that the dynamics associated with these representations are generated, maintained, and updated by recurrent network structures called ring attractors. We evaluated this theorized structure-function relationship by performing electron-microscopy-based circuit reconstruction and RNA profiling of identified cell types in the HD system of Drosophila melanogaster. We identified motifs that have been hypothesized to maintain the HD representation in darkness, update it when the animal turns, and tether it to visual cues. Functional studies provided support for the proposed roles of individual excitatory or inhibitory circuit elements in shaping activity. We also discovered recurrent connections between neuronal arbors with mixed pre- and postsynaptic specializations. Our results confirm that the Drosophila HD network contains the core components of a ring attractor while also revealing unpredicted structural features that might enhance the network's computational power.

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Crossref · 10.1016/j.neuron.2020.08.006

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  • Co-transmission of a fast-acting transmitter and a neuropeptide was more common.

    “Co-transmission of a fast-acting transmitter and a neuropeptide was more common, e.g., Kenyon cells (at least acetylcholine, sparkly and short neuropeptide F),21,25,55,164 the dorsal paired medial (DPM) neuron (GABA, serotonin, sparkly, nplp1, proctolin, orcokinin, eclosion hormone, CG34136)25,56,60 and most central complex, mushroom body output and mushroom body dopaminergic neurons.25,157”

    From Neurotransmitter classification from electron microscopy images at synaptic sites in Drosophila melanogaster (2024) · cites this paper as [157]

    The Results section identifies fast-acting transmitters in several central-complex neuron types and points to supplemental information for neuropeptide signaling, but the passages in our copy do not say that these neurons co-transmit a neuropeptide or that such co-transmission is more common. Searches for neuropeptide signaling, co-release, and named peptides did not establish that comparison; page numbers were unavailable. (LLM, conf=0.72)

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Authors
Turner-Evans, D. B., Jensen, K. T., Ali, S., Paterson, T., Sheridan, A., Ray, R. P., Wolff, T., Lauritzen, J. S., Rubin, G. M., Bock, D. D., & Jayaraman, V.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of Vermont (US)
Corresponding author
Jayaraman, Vivek
Venue
Neuron
Publisher
Elsevier BV
Published
2020-10
Volume
108
Issue
1
Pages
145-163.e10
ISSN
0896-6273 (ISSN-L)
OpenAlex
W3084308099
Cited by
168
References
128
Citations by year
2026: 21 · 2025: 29 · 2024: 36 · 2023: 33 · 2022: 20 · 2021: 15 · 2020: 10 · 2019: 3
FWCI
8.88
Type
journal article
Language
en
Update notices
erratum (2021-05-05)
Open access
Locations
  • Neuron (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
Howard Hughes Medical Institute
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 › Neurology › Vestibular and auditory disorders
Keywords
ring attractor, Drosophila melanogaster, recurrent neural circuits, circuit reconstruction, RNA profiling, neuronal ultrastructure, visual cue integration, synaptic specializations
MeSH terms
Animals, Brain, Drosophila melanogaster, Microscopy, Electron, Nerve Net, Neural Pathways, Neurons, Synapses, Visual Pathways, Microscopy, Confocal, Head Movements, Microscopy, Fluorescence, Multiphoton, Spatial Navigation

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