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Automated quantification of neuronal networks and single-cell calcium dynamics using calcium imaging.

Abstract：

BACKGROUND:Recent advances in genetically engineered calcium and membrane potential indicators provide the potential to estimate the activation dynamics of individual neurons within larger, mesoscale networks (100s-1000+neurons). However, a fully integrated automated workflow for the analysis and visualization of neural microcircuits from high speed fluorescence imaging data is lacking. NEW METHOD:Here we introduce FluoroSNNAP, Fluorescence Single Neuron and Network Analysis Package. FluoroSNNAP is an open-source, interactive software developed in MATLAB for automated quantification of numerous biologically relevant features of both the calcium dynamics of single-cells and network activity patterns. FluoroSNNAP integrates and improves upon existing tools for spike detection, synchronization analysis, and inference of functional connectivity, making it most useful to experimentalists with little or no programming knowledge. RESULTS:We apply FluoroSNNAP to characterize the activity patterns of neuronal microcircuits undergoing developmental maturation in vitro. Separately, we highlight the utility of single-cell analysis for phenotyping a mixed population of neurons expressing a human mutant variant of the microtubule associated protein tau and wild-type tau. COMPARISON WITH EXISTING METHOD(S):We show the performance of semi-automated cell segmentation using spatiotemporal independent component analysis and significant improvement in detecting calcium transients using a template-based algorithm in comparison to peak-based or wavelet-based detection methods. Our software further enables automated analysis of microcircuits, which is an improvement over existing methods. CONCLUSIONS:We expect the dissemination of this software will facilitate a comprehensive analysis of neuronal networks, promoting the rapid interrogation of circuits in health and disease.

journal_name

J Neurosci Methods

journal_title

Journal of neuroscience methods

authors

Patel TP,Man K,Firestein BL,Meaney DF

doi

10.1016/j.jneumeth.2015.01.020

subject

Has Abstract

pub_date

2015-03-30 00:00:00

pages

26-38

eissn

0165-0270

issn

1872-678X

pii

S0165-0270(15)00021-7

journal_volume

243

pub_type

杂志文章

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