Evidence map›Paper›PMID 19052108›Full record

ArticleJournal of neurophysiology2009

Why sniff fast? The relationship between sniff frequency, odor discrimination, and receptor neuron activation in the rat.

Daniel W Wesson, Justus V Verhagen, Matt Wachowiak

Open access · greenAbstract read
In one paragraph

Article in Journal of neurophysiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

73 citing papers in PubMed, 122 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Mice navigate scent trails using predictive policies.bioRxiv : the preprint server for biology · 2025
    Article
  5. 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
  6. Article
  7. Article
  8. Breathing orchestrates synchronization of sleep oscillations in the human hippocampus.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  9. Direct Piriform-to-Auditory Cortical Projections Shape Auditory-Olfactory Integration.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Long-Range Respiratory and Theta Oscillation Networks Depend on Spatial Sensory Context.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  19. Article
  20. Article

13 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Daniel W WessonDepartment of Biology, Boston University, Boston, MA, USA. dwesson@nki.rfmh.org
Justus V Verhagen
Matt Wachowiak
Boston University · USYale University · US

Funding

Dynamics of Glomerular Coding in the Olfactory BulbR01DC006441 · NIDCD · UNIVERSITY OF UTAH · PI WACHOWIAK, DALE M · 2004 to 2018
$4.9M
6 · The paper itself

Abstract

Many mammals display brief bouts of high-frequency (4-10 Hz) sniffing when sampling odors. Given this, high-frequency sniffing is thought to play an important role in odor information processing. Here, we asked what role rapid sampling behavior plays in odor coding and odor discrimination by monitoring sniffing during performance of discrimination tasks under different paradigms and across different levels of difficulty and by imaging olfactory receptor neuron (ORN) input to the olfactory bulb (OB) during behavior. To eliminate confounds of locomotion and object approach, all experiments were performed in head-fixed rats. Rats showed individual differences in sniffing strategies that emerged during discrimination learning, with some rats showing brief bouts of rapid sniffing on odorant onset and others showing little or no change in sniff frequency. All rats performed with high accuracy, indicating that rapid sniffing is not necessary for odor discrimination. Sniffing strategies remained unchanged even when task difficulty was increased. In the imaging experiments, rapid sniff bouts did not alter the magnitude of odorant-evoked inputs compared with trials in which rapid sniffing was not expressed. Furthermore, rapid sniff bouts typically began before detectable activation of ORNs and ended immediately afterward. Thus rapid sniffing did not enable multiple samples of an odorant before decision-making. These results suggest that the major functional contribution of rapid sniffing to odor discrimination performance is to enable the animal to acquire the stimulus more quickly once it is available rather than to directly influence the low-level neural processes underlying odor perception.

Indexed as

OdorantsAction PotentialsAnalysis of VarianceAnimalsDiscrimination, PsychologicalFemaleOlfactory BulbOlfactory Receptor NeuronsPsychophysicsRatsRats, Long-EvansReaction TimeSmellTime Factors

Identifiers

PMID19052108
PMCPMC2657070
OpenAlexW2026102698

What OpenQuestion holds

Textmetadata
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.