Robust and Unbiased Variance of GLM Coefficients for Misspecified Autocorrelation and Hemodynamic Response Models in fMRI

As a consequence of misspecification of the hemodynamic response and noise variance models, tests on general linear model coefficients are not valid. Robust estimation of the variance of the general linear model (GLM) coefficients in fMRI time series is therefore essential. In this paper an alternat...

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Bibliographic Details
Main Author: Lourens Waldorp
Format: Article
Language:English
Published: Wiley 2009-01-01
Series:International Journal of Biomedical Imaging
Online Access:http://dx.doi.org/10.1155/2009/723912
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