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Orthogonalization of Regressors in fMRI Models

The occurrence of collinearity in fMRI-based GLMs (general linear models) may reduce power or produce unreliable parameter estimates. It is commonly believed that orthogonalizing collinear regressors in the model will solve this problem, and some software packages apply automatic orthogonalization....

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Bibliographic Details
Published in:PLoS One
Main Authors: Mumford, Jeanette A., Poline, Jean-Baptiste, Poldrack, Russell A.
Format: Artigo
Language:Inglês
Published: Public Library of Science 2015
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Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC4412813/
https://ncbi.nlm.nih.gov/pubmed/25919488
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1371/journal.pone.0126255
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