Hi Freesurfer experts, I was wondering how exactly time point exclude files are used by FSFAST. Are the time points removed from the time series before the GLM, or is the time point exclude file used to build a nuisance predictor (as in FSL's motion outliers routine, http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLMotionOutliers)? If the time points are removed from the time series, how is that accounted for when calculating the autocorrelation for the whitening / during (high pass) filtering? Thanks, Caspar
They are accounted for as nuisance predictors in the GLM. They are not removed from the time series. doug
On 06/26/2013 06:59 PM, Caspar M. Schwiedrzik wrote:
Hi Freesurfer experts, I was wondering how exactly time point exclude files are used by FSFAST. Are the time points removed from the time series before the GLM, or is the time point exclude file used to build a nuisance predictor (as in FSL's motion outliers routine, http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLMotionOutliers)? If the time points are removed from the time series, how is that accounted for when calculating the autocorrelation for the whitening / during (high pass) filtering? Thanks, Caspar _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Thanks, Doug! Caspar
On Wednesday, June 26, 2013, Douglas N Greve wrote:
They are accounted for as nuisance predictors in the GLM. They are not removed from the time series. doug
On 06/26/2013 06:59 PM, Caspar M. Schwiedrzik wrote:
Hi Freesurfer experts, I was wondering how exactly time point exclude files are used by FSFAST. Are the time points removed from the time series before the GLM, or is the time point exclude file used to build a nuisance predictor (as in FSL's motion outliers routine, http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLMotionOutliers)? If the time points are removed from the time series, how is that accounted for when calculating the autocorrelation for the whitening / during (high pass) filtering? Thanks, Caspar _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu javascript:; https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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