ICA 2007

ICA 2007
7th International Conference on
Independent Component Analysis
and Signal Separation

London, UK        9 - 12 September 2007

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Paper No: 136

A toolbox for model-free analysis of fMRI data

Author(s): Peter Gruber, Christian Kohler, Fabian Theis


We introduce MFBOX (Model-free Toolbox), a Matlab toolbox for analyzing multivariate data sets in an explorative fashion. Its main focus lies on the analysis of fMRI data sets with various model-free or data-driven techniques. In this context, it can also be used as plugin for SPM5, a popular tool in regression-based fMRI analysis. The toolbox includes BSS algorithms based on various source models including ICA, spatiotemporal ICA, autodecorrelation and NMF. They can all be easily combined with higher-level analysis methods such as reliability analysis using projective clustering of the components, sliding time window analysis or hierarchical decomposition. As an example, we use MFBOX for the analysis of an fMRI experiment and present short comparisons with the SPM results.

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