Behavioral discrimination and olfactory bulb encoding of odor plume intermittency

  1. Ankita Gumaste
  2. Keeley L Baker
  3. Michelle Izydorczak
  4. Aaron C True
  5. Ganesh Vasan
  6. John P. Crimaldi
  7. Justus Verhagen  Is a corresponding author
  1. Yale University, United States
  2. John B. Pierce Laboratory, United States
  3. University of Colorado Boulder, United States

Abstract

In order to survive, animals often need to navigate a complex odor landscape where odors can exist in airborne plumes. Several odor plume properties change with distance from the odor source, providing potential navigational cues to searching animals. Here we focus on odor intermittency, a temporal odor plume property that measures the fraction of time odor is above a threshold at a given point within the plume and decreases with increasing distance from the odor source. We sought to determine if mice can use changes in intermittency to locate an odor source. To do so, we trained mice on an intermittency discrimination task. We establish that mice can discriminate odor plume samples of low and high intermittency and that the neural responses in the olfactory bulb can account for task performance and support intermittency encoding. Modulation of sniffing, a behavioral parameter that is highly dynamic during odor-guided navigation, affects both behavioral outcome on the intermittency discrimination task as well as neural representation of intermittency. Together, this work demonstrates that intermittency is an odor plume property that can inform olfactory search and more broadly supports the notion that mammalian odor-based navigation can be guided by temporal odor plume properties.

Data availability

All data and analysis codes are available at https://doi.org/10.5061/dryad.crjdfn387

The following data sets were generated

Article and author information

Author details

  1. Ankita Gumaste

    Interdepartmental Neuroscience Program, Yale University, New Haven, United States
    Competing interests
    The authors declare that no competing interests exist.
  2. Keeley L Baker

    John B. Pierce Laboratory, New Haven, United States
    Competing interests
    The authors declare that no competing interests exist.
  3. Michelle Izydorczak

    John B. Pierce Laboratory, New Haven, United States
    Competing interests
    The authors declare that no competing interests exist.
  4. Aaron C True

    Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, Boulder, United States
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-9956-5105
  5. Ganesh Vasan

    John B. Pierce Laboratory, New Haven, United States
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-6612-7739
  6. John P. Crimaldi

    Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, Boulder, United States
    Competing interests
    The authors declare that no competing interests exist.
  7. Justus Verhagen

    John B. Pierce Laboratory, New Haven, United States
    For correspondence
    jverhagen@jbpierce.org
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-6090-0073

Funding

National Science Foundation (NSF/CIHR/DFG/FRQ/UKRI-MRC Next Generation Networks for Neuroscience Program (Award #2014217))

  • Ankita Gumaste
  • Keeley L Baker
  • Michelle Izydorczak
  • Aaron C True
  • John P. Crimaldi
  • Justus Verhagen

National Institutes of Health (NRSA 1F31DC018708)

  • Ankita Gumaste

National Science Foundation (BRAIN 1555880)

  • Ankita Gumaste
  • Keeley L Baker
  • Michelle Izydorczak
  • Justus Verhagen

National Science Foundation (BRAIN 1555862)

  • Aaron C True
  • John P. Crimaldi

National Institutes of Health (R01 DC014723)

  • Justus Verhagen

The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.

Ethics

Animal experimentation: All procedures were performed in accordance with protocols approved by the Pierce Animal Care and Use Committee (PACUC) JV1-2019. These procedures are in agreement with the National Institutes of Health Guide for Care and Use of Laboratory Animals.

Copyright

© 2024, Gumaste et al.

This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.

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  1. Ankita Gumaste
  2. Keeley L Baker
  3. Michelle Izydorczak
  4. Aaron C True
  5. Ganesh Vasan
  6. John P. Crimaldi
  7. Justus Verhagen
(2024)
Behavioral discrimination and olfactory bulb encoding of odor plume intermittency
eLife 13:e85303.
https://doi.org/10.7554/eLife.85303

Share this article

https://doi.org/10.7554/eLife.85303

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