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Technical Program
Paper Detail
| Paper: | WP-L2.5 |
| Session: | Magnetic Resonance Imaging |
| Time: | Wednesday, October 11, 16:00 - 16:20 |
| Presentation: |
Lecture
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| Title: |
SPATIALLY LOCAL AND TEMPORALLY SMOOTH PCA FOR FMRI |
| Authors: |
Magnus Ulfarsson; University of Michigan | | | | | Victor Solo; University of Michigan | | |
| Abstract: |
PCA has found use a an exploratory technique for fMRI analysis. However underlying it is an implicit model that while allowing temporal non-stationary covariance assumes the same covariance structure for all voxels. Here we relax this assumption for the first time by developing a version of PCA that allows the covariance structure to vary spatially. The new method is applied to some real data and provides one interesting new insight. |
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