Evidence map›Paper›PMID 24210905›Full record

ArticleNeuron2013

Encoding of mixtures in a simple olfactory system.

Kai Shen, Sina Tootoonian, Gilles Laurent

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 65 citations in OpenAlex.

  1. Recalibrating Olfactory Neuroscience to the Range of Naturally Occurring Odor Concentrations.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
  2. Article
  3. Article
  4. Article
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  7. Habituation as a neural algorithm for online odor discrimination.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  8. Article
  9. Article
  10. Article
  11. Competitive binding predicts nonlinear responses of olfactory receptors to complex mixtures.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. History-Dependent Odor Processing in the Mouse Olfactory Bulb.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 2 countries.

Kai ShenCalifornia Institute of Technology, Division of Biology, CNS Program, Pasadena, CA 91125, USA.
Sina Tootoonian
Gilles Laurent
California Institute of Technology · US

Funding

Electrophysiology and imaging of Drosophila olfactionR01DC007652 · NIDCD · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI SIAPAS, ATHANASSIOS · 2006 to 2010
$1.5M
NIDCD NIH HHS R01 DC007652
6 · The paper itself

Abstract

Natural odors are usually mixtures; yet, humans and animals can experience them as unitary percepts. Olfaction also enables stimulus categorization and generalization. We studied how these computations are performed with the responses of 168 locust antennal lobe projection neurons (PNs) to varying mixtures of two monomolecular odors, and of 174 PNs and 209 mushroom body Kenyon cells (KCs) to mixtures of up to eight monomolecular odors. Single-PN responses showed strong hypoadditivity and population trajectories clustered by odor concentration and mixture similarity. KC responses were much sparser on average than those of PNs and often signaled the presence of single components in mixtures. Linear classifiers could read out the responses of both populations in single time bins to perform odor identification, categorization, and generalization. Our results suggest that odor representations in the mushroom body may result from competing optimization constraints to facilitate memorization (sparseness) while enabling identification, classification, and generalization.

Indexed as

Action PotentialsAnimalsArthropod AntennaeBayes TheoremGrasshoppersLinear ModelsModels, NeurologicalMushroom BodiesNeural PathwaysNeuronsOdorantsOlfactory PathwaysReaction TimeROC CurveSmellTime Factors

Identifiers

PMID24210905
PMCPMC3858500
OpenAlexW1993873279

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.