ArticleNature communications2018
Optimal dynamic coding by mixed-dimensionality neurons in the head-direction system of bats.
Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Distributed burst firing mediates optimized cortical encoding of natural self-motion.Science advances · 2026Article
- Design principles for cost functions in optimal sensory coding.Frontiers in computational neuroscience · 2026Review
- Navigation and the efficiency of spatial coding: insights from closed-loop simulations.Brain structure & function · 2024Article
- Redundant representations are required to disambiguate simultaneously presented complex stimuli.PLoS computational biology · 2023Article
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- New insights on single-neuron selectivity in the era of population-level approaches.Frontiers in integrative neuroscience · 2022Review
- Numerosity and cumulative surface area are perceived holistically as integral dimensions.Journal of experimental psychology. General · 2021Article
- The head direction cell network: attractor dynamics, integration within the navigation system, and three-dimensional properties.Current opinion in neurobiology · 2020Review
- Nonlinear mixed selectivity supports reliable neural computation.PLoS computational biology · 2020Article
- Anticipatory Neural Activity Improves the Decoding Accuracy for Dynamic Head-Direction Signals.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
Ethologically relevant stimuli are often multidimensional. In many brain systems, neurons with "pure" tuning to one stimulus dimension are found along with "conjunctive" neurons that encode several dimensions, forming an apparently redundant representation. Here we show using theoretical analysis that a mixed-dimensionality code can efficiently represent a stimulus in different behavioral regimes: encoding by conjunctive cells is more robust when the stimulus changes quickly, whereas on long timescales pure cells represent the stimulus more efficiently with fewer neurons. We tested our predictions experimentally in the bat head-direction system and found that many head-direction cells switched their tuning dynamically from pure to conjunctive representation as a function of angular velocity-confirming our theoretical prediction. More broadly, our results suggest that optimal dimensionality depends on population size and on the time available for decoding-which might explain why mixed-dimensionality representations are common in sensory, motor, and higher cognitive systems across species.
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