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Visual depiction of SICA and TICA of fMRI. The matrix representation of the SICA (a) and TICA (b) approaches. In each case, the spatial information is flattened into one dimension and the temporal information is one dimension. In SICA, the algorithm attempts to find spatially independent components with associated (unconstrained) time courses whereas in TICA the algorithm attempts to find temporally independent time courses with associated spatial maps.
