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Journal articles
Temporal and Spatial Independent Component Analysis for fMRI Data Sets Embedded in the AnalyzeFMRI R Package
Abstract : For statistical analysis of functional magnetic resonance imaging (fMRI) data sets, we propose a data-driven approach based on independent component analysis (ICA) implemented in a new version of the AnalyzeFMRI R package. For fMRI data sets, spatial dimension being much greater than temporal dimension, spatial ICA is the computationally tractable approach generally proposed. However, for some neuroscienti c applications, temporal independence of source signals can be assumed and temporal ICA becomes then an attractive exploratory technique. In this work, we use a classical linear algebra result ensuring the tractability of temporal ICA. We report several experiments on synthetic data and real MRI data sets that demonstrate the potential interest of our R package.
https://www.hal.inserm.fr/inserm-00659425
Contributor : Michel Dojat Connect in order to contact the contributor
Submitted on : Thursday, January 12, 2012 - 5:09:28 PM
Last modification on : Monday, May 23, 2022 - 12:46:04 PM
Long-term archiving on: : Monday, November 19, 2012 - 1:30:16 PM
Contributor : Michel Dojat Connect in order to contact the contributor
Submitted on : Thursday, January 12, 2012 - 5:09:28 PM
Last modification on : Monday, May 23, 2022 - 12:46:04 PM
Long-term archiving on: : Monday, November 19, 2012 - 1:30:16 PM
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