The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.

<h4>Background</h4>Caenorhabditis elegans locomotion is a simple behavior that has been widely used to dissect genetic components of behavior, synaptic transmission, and muscle function. Many of the paradigms that have been created to study C. elegans locomotion rely on qualitative exper...

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Main Authors: Daniel Ramot, Brandon E Johnson, Tommie L Berry, Lucinda Carnell, Miriam B Goodman
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2008-05-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0002208&type=printable
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author Daniel Ramot
Brandon E Johnson
Tommie L Berry
Lucinda Carnell
Miriam B Goodman
author_facet Daniel Ramot
Brandon E Johnson
Tommie L Berry
Lucinda Carnell
Miriam B Goodman
author_sort Daniel Ramot
collection DOAJ
description <h4>Background</h4>Caenorhabditis elegans locomotion is a simple behavior that has been widely used to dissect genetic components of behavior, synaptic transmission, and muscle function. Many of the paradigms that have been created to study C. elegans locomotion rely on qualitative experimenter observation. Here we report the implementation of an automated tracking system developed to quantify the locomotion of multiple individual worms in parallel.<h4>Methodology/principal findings</h4>Our tracking system generates a consistent measurement of locomotion that allows direct comparison of results across experiments and experimenters and provides a standard method to share data between laboratories. The tracker utilizes a video camera attached to a zoom lens and a software package implemented in MATLAB. We demonstrate several proof-of-principle applications for the tracker including measuring speed in the absence and presence of food and in the presence of serotonin. We further use the tracker to automatically quantify the time course of paralysis of worms exposed to aldicarb and levamisole and show that tracker performance compares favorably to data generated using a hand-scored metric.<h4>Conclusions/significance</h4>Although this is not the first automated tracking system developed to measure C. elegans locomotion, our tracking software package is freely available and provides a simple interface that includes tools for rapid data collection and analysis. By contrast with other tools, it is not dependent on a specific set of hardware. We propose that the tracker may be used for a broad range of additional worm locomotion applications including genetic and chemical screening.
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spelling doaj-art-a0a21ce5b83e40acbf90b5e105aeb97c2025-08-20T02:17:21ZengPublic Library of Science (PLoS)PLoS ONE1932-62032008-05-0135e220810.1371/journal.pone.0002208The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.Daniel RamotBrandon E JohnsonTommie L BerryLucinda CarnellMiriam B Goodman<h4>Background</h4>Caenorhabditis elegans locomotion is a simple behavior that has been widely used to dissect genetic components of behavior, synaptic transmission, and muscle function. Many of the paradigms that have been created to study C. elegans locomotion rely on qualitative experimenter observation. Here we report the implementation of an automated tracking system developed to quantify the locomotion of multiple individual worms in parallel.<h4>Methodology/principal findings</h4>Our tracking system generates a consistent measurement of locomotion that allows direct comparison of results across experiments and experimenters and provides a standard method to share data between laboratories. The tracker utilizes a video camera attached to a zoom lens and a software package implemented in MATLAB. We demonstrate several proof-of-principle applications for the tracker including measuring speed in the absence and presence of food and in the presence of serotonin. We further use the tracker to automatically quantify the time course of paralysis of worms exposed to aldicarb and levamisole and show that tracker performance compares favorably to data generated using a hand-scored metric.<h4>Conclusions/significance</h4>Although this is not the first automated tracking system developed to measure C. elegans locomotion, our tracking software package is freely available and provides a simple interface that includes tools for rapid data collection and analysis. By contrast with other tools, it is not dependent on a specific set of hardware. We propose that the tracker may be used for a broad range of additional worm locomotion applications including genetic and chemical screening.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0002208&type=printable
spellingShingle Daniel Ramot
Brandon E Johnson
Tommie L Berry
Lucinda Carnell
Miriam B Goodman
The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.
PLoS ONE
title The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.
title_full The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.
title_fullStr The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.
title_full_unstemmed The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.
title_short The Parallel Worm Tracker: a platform for measuring average speed and drug-induced paralysis in nematodes.
title_sort parallel worm tracker a platform for measuring average speed and drug induced paralysis in nematodes
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0002208&type=printable
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