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蟋蟀端神经节传入终末的结构与持久同调。

Structure of the afferent terminals in terminal ganglion of a cricket and persistent homology.

机构信息

Department of Mathematical Sciences, Center for Computational Biology, Montana State University, Bozeman, Montana, United States of America.

出版信息

PLoS One. 2012;7(5):e37278. doi: 10.1371/journal.pone.0037278. Epub 2012 May 23.

DOI:10.1371/journal.pone.0037278
PMID:22649516
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3359360/
Abstract

We use topological data analysis to investigate the three dimensional spatial structure of the locus of afferent neuron terminals in crickets Acheta domesticus. Each afferent neuron innervates a filiform hair positioned on a cercus: a protruding appendage at the rear of the animal. The hairs transduce air motion to the neuron signal that is used by a cricket to respond to the environment. We stratify the hairs (and the corresponding afferent terminals) into classes depending on hair length, along with position. Our analysis uncovers significant structure in the relative position of these terminal classes and suggests the functional relevance of this structure. Our method is very robust to the presence of significant experimental and developmental noise. It can be used to analyze a wide range of other point cloud data sets.

摘要

我们使用拓扑数据分析来研究蟋蟀 Acheta domesticus 传入神经元末梢的三维空间结构。每个传入神经元都支配着位于触角上的一根丝状毛发：动物后部的一个突出附属物。毛发将空气运动转换为神经元信号，蟋蟀利用该信号来对环境做出反应。我们根据毛发长度以及位置将毛发（和相应的传入末梢）分层到不同的类别。我们的分析揭示了这些末梢类别的相对位置的显著结构，并表明了这种结构的功能相关性。我们的方法对存在显著的实验和发育噪声具有很强的稳健性。它可以用于分析广泛的其他点云数据集。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8ed4/3359360/97d40fc7a527/pone.0037278.g015.jpg
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本文引用的文献

1
The cricket cercal system implements delay-line processing.蟋蟀的尾须系统实现延迟线处理。
J Neurophysiol. 2010 Apr;103(4):1823-32. doi: 10.1152/jn.00875.2009. Epub 2010 Jan 27.
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Extraction of sensory parameters from a neural map by primary sensory interneurons.初级感觉中间神经元从神经图谱中提取感觉参数。
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Neural mapping of direction and frequency in the cricket cercal sensory system.蟋蟀尾须感觉系统中方向和频率的神经图谱
二人成伴，三人（或更多人）则为简单形：用于理解神经数据中高阶结构的代数拓扑工具。
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Functional organization of a neural map in the cricket cercal sensory system.蟋蟀尾须感觉系统中神经图谱的功能组织。
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