ArticleCurrent biology : CB2022
Neural mechanisms to exploit positional geometry for collision avoidance.
Article in Current biology : CB, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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23 citing papers in PubMed.
- The neurotrophin DNT-2 via the Toll-2 receptor regulates neuronal survival and morphology during visual system development.Biology open · 2026Article
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- Dynamic trajectory cues drive sequenced integration in approach detectors.bioRxiv : the preprint server for biology · 2026Article
- Drosophila DNp03 descending neurons serve as a hub within a flight saccade network.Current biology : CB · 2026Article
- Graph embeddings for identifying symmetries in Connectomes.bioRxiv : the preprint server for biology · 2025Article
- Visual circuitry for distance estimation in Drosophila.Current biology : CB · 2025Article
- On analogies in vertebrate and insect visual systems.Nature reviews. Neuroscience · 2025Review
- Adaptation to visual sparsity enhances responses to isolated stimuli.Current biology : CB · 2024Article
- Neuronal identity control at the resolution of a single transcription factor isoform.bioRxiv : the preprint server for biology · 2024Article
- NeuronBridge: an intuitive web application for neuronal morphology search across large data sets.BMC bioinformatics · 2024Article
- Long-term neuropeptide modulation of female sexual drive via the TRP channel inProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Neural mechanisms to incorporate visual counterevidence in self-movement estimation.Current biology : CB · 2023Article
- Long-timescale anti-directional rotation ineLife · 2023Article
- Neural mechanisms to incorporate visual counterevidence in self motion estimation.bioRxiv : the preprint server for biology · 2023Article
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- Long timescale anti-directional rotation in Drosophila optomotor behavior.bioRxiv : the preprint server for biology · 2023Article
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- Bioinspired figure-ground discrimination via visual motion smoothing.PLoS computational biology · 2023Article
- A searchable image resource ofeLife · 2023Article
- Article
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Abstract
Visual motion provides rich geometrical cues about the three-dimensional configuration of the world. However, how brains decode the spatial information carried by motion signals remains poorly understood. Here, we study a collision-avoidance behavior in Drosophila as a simple model of motion-based spatial vision. With simulations and psychophysics, we demonstrate that walking Drosophila exhibit a pattern of slowing to avoid collisions by exploiting the geometry of positional changes of objects on near-collision courses. This behavior requires the visual neuron LPLC1, whose tuning mirrors the behavior and whose activity drives slowing. LPLC1 pools inputs from object and motion detectors, and spatially biased inhibition tunes it to the geometry of collisions. Connectomic analyses identified circuitry downstream of LPLC1 that faithfully inherits its response properties. Overall, our results reveal how a small neural circuit solves a specific spatial vision task by combining distinct visual features to exploit universal geometrical constraints of the visual world.
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