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3-D Worm Tracker for Freely Moving C. elegans

Title
3-D Worm Tracker for Freely Moving C. elegans
Authors
Namseop KwonJaeyeon PyoLee, SJJung Ho Je
POSTECH Authors
Lee, SJ
Date Issued
Feb-2013
Publisher
PLOS
Abstract
The manner in which the nervous system regulates animal behaviors in natural environments is a fundamental issue in biology. To address this question, C. elegans has been widely used as a model animal for the analysis of various animal behaviors. Previous behavioral assays have been limited to two-dimensional (2-D) environments, confining the worm motion to a planar substrate that does not reflect three-dimensional (3-D) natural environments such as rotting fruits or soil. Here, we develop a 3-D worm tracker (3DWT) for freely moving C. elegans in 3-D environments, based on a stereoscopic configuration. The 3DWT provides us with a quantitative trajectory, including the position and movement direction of the worm in 3-D. The 3DWT is also capable of recording and visualizing postures of the moving worm in 3-D, which are more complex than those in 2-D. Our 3DWT affords new opportunities for understanding the nervous system function that regulates animal behaviors in natural 3-D environments.
URI
http://oasis.postech.ac.kr/handle/2014.oak/15960
DOI
10.1371/JOURNAL.PONE.0057484
ISSN
1932-6203
Article Type
Article
Citation
PLOS ONE, vol. 8, no. 2, 2013-02
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 LEE, SEUNG JAE
Dept of Life Sciences
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