ArticleeLife2022
Alternation emerges as a multi-modal strategy for turbulent odor navigation.
Article in eLife, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 27 citations in OpenAlex.
- Article
- Fly navigational responses exploit plume-specific odor motion and gradient cues.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- TURB-Smoke. A database of Lagrangian pollutants emitted from point sources in turbulent flows with a mean wind.Scientific data · 2026Article
- Noise enhances odor source localization.ArXiv · 2026Article
- Article
- Optimal switching strategies for navigation in stochastic settings.Journal of the Royal Society, Interface · 2025Article
- Manifold learning for olfactory habituation to strongly fluctuating backgrounds.bioRxiv : the preprint server for biology · 2025Article
- Article
- Octopus track chemosensory plumes to find food.PloS one · 2025Article
- Wind gates olfaction-driven search states in free flight.Current biology : CB · 2024Article
- Dynamics of odor-source localization: Insights from real-time odor plume recordings and head-motion tracking in freely moving mice.bioRxiv : the preprint server for biology · 2024Article
- The spiking output of the mouse olfactory bulb encodes large-scale temporal features of natural odor environments.bioRxiv : the preprint server for biology · 2024Article
- Dynamics of odor-source localization: Insights from real-time odor plume recordings and head-motion tracking in freely moving mice.PloS one · 2024Article
- Extracting spatial information from temporal odor patterns: insights from insects.Current opinion in insect science · 2023Review
- Olfactory search with finite-state controllers.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Olfactory navigation in arthropods.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2023Review
- Where is that smell coming from?eLife · 2022Article
- Article
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4 authors at 3 institutions in 6 countries.
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Abstract
Foraging mammals exhibit a familiar yet poorly characterized phenomenon, 'alternation', a pause to sniff in the air preceded by the animal rearing on its hind legs or raising its head. Rodents spontaneously alternate in the presence of airflow, suggesting that alternation serves an important role during plume-tracking. To test this hypothesis, we combine fully resolved simulations of turbulent odor transport and Bellman optimization methods for decision-making under partial observability. We show that an agent trained to minimize search time in a realistic odor plume exhibits extensive alternation together with the characteristic cast-and-surge behavior observed in insects. Alternation is linked with casting and occurs more frequently far downwind of the source, where the likelihood of detecting airborne cues is higher relative to ground cues. Casting and alternation emerge as complementary tools for effective exploration with sparse cues. A model based on marginal value theory captures the interplay between casting, surging, and alternation.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.