Hi Caspar, it does not make sense to low pass filter and prewhiten. Unfortunately, I don't have the precoloring implemented in FSFAST. doug
On 06/15/2012 01:36 PM, Caspar M. Schwiedrzik wrote: > Hi! > I am processing a resting state data set, which I would like to low > pass filter to get rid of some artifacts. The sample will be very > small, so I won't run a RFX GLM, but an FFX GLM and/or single subject > analyses. > Since the low pass filter introduces high autocorrelations, it does > not make sense to whiten the data before the GLM. > However, in order not to violate the assumptions of the OLS, I would > like to use the precoloring approach described in Worsley & Friston > 1995. Is that by any chance implemented in FSFAST, and if not, where > would be the right place to add it? > Thanks in advance, > Caspar > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
