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PubMed · 11358667

Graphical display of fMRI data: visualizing multidimensional space.

R Baumgartner·R Somorjai
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Abstract

Visualization of multidimensional data is an integral part of computational statistics and exploratory data analysis (EDA). We show how visualization of fMRI time-courses may be used to reveal the fMRI data structure. We consider fMRI time-courses (TCs) as points in multidimensional space. In simulated and in vivo data, we show that minimum spanning tree (MST)-based sequencing of multivariate time-courses, in combination with a homogeneity map visualization, allows for effective and useful graphical display of the groups of coactivated time-courses obtained by temporal clustering. This display may serve as a tool for investigation of brain connectivity. We also suggest a simple overall display of the entire fMRI data set.

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ArtifactsBrainBrain MappingComputer GraphicsComputer SimulationData DisplayHumansImage EnhancementImage Processing, Computer-AssistedMagnetic Resonance ImagingMathematical ComputingOrientationPattern Recognition, VisualPhantoms, ImagingProblem SolvingTime and Motion StudiesJournal Article

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R Baumgartner, R Somorjai. 2001. Graphical display of fMRI data: visualizing multidimensional space.. https://doi.org/10.1016/s0730-725x(01)00296-x

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