Model Comparison and Assessment for Single Particle Tracking in Biological Fluids
Model Comparison and Assessment for Single Particle Tracking in Biological Fluids
复制标题
生物流体中单粒子追踪的模型比较和评估
DOI:
10.1080/01621459.2016.1158716
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发表时间:
2014
影响因子:
3.7
通讯作者:
Scott A. McKinley
中科院分区:
文献类型:
--
作者:
Martin Lysy;N. Pillai;David B. Hill;M. Forest;John Mellnik;Paula A. Vasquez;Scott A. McKinley
ABSTRACT State-of-the-art techniques in passive particle-tracking microscopy provide high-resolution path trajectories of diverse foreign particles in biological fluids. For particles on the order of 1 μm diameter, these paths are generally inconsistent with simple Brownian motion. Yet, despite an abundance of data confirming these findings and their wide-ranging scientific implications, stochastic modeling of the complex particle motion has received comparatively little attention. Even among posited models, there is virtually no literature on likelihood-based inference, model comparisons, and other quantitative assessments. In this article, we develop a rigorous and computationally efficient Bayesian methodology to address this gap. We analyze two of the most prevalent candidate models for 30-sec paths of 1 μm diameter tracer particles in human lung mucus: fractional Brownian motion (fBM) and a Generalized Langevin Equation (GLE) consistent with viscoelastic theory. Our model comparisons distinctly favor GLE over fBM, with the former describing the data remarkably well up to the timescales for which we have reliable information. Supplementary materials for this article are available online.
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影响因子:
16.1
作者:
Lai, Samuel K.;Wang, Ying-Ying;Hanes, Justin
通讯作者:
Hanes, Justin
影响因子:
3.4
作者:
Saxton, Michael J.
通讯作者:
Saxton, Michael J.
影响因子:
16.1
作者:
Schuster BS;Ensign LM;Allan DB;Suk JS;Hanes J
通讯作者:
Hanes J
影响因子:
14
作者:
Suk, Jung Soo;Lai, Samuel K.;Wang, Ying-Ying;Ensign, Laura M.;Zeitlin, Pamela L.;Boyle, Michael P.;Hanes, Justin
通讯作者:
Hanes, Justin
影响因子:
3.4
作者:
Olmsted, SS;Padgett, JL;Cone, RA
通讯作者:
Cone, RA