Thank you, much appreciated! > > Is this the same question posted yesterday on martinos-tech? I answered > it as below > > Yes, those are in the sig.nii.gz file (these are -log10(p)). The DOF is > related to the number of TRs > doug > > On 04/29/2014 04:49 PM, jaco...@nmr.mgh.harvard.edu wrote: >> ---------- Forwarded message ---------- >> Hello Doug et al., >> >> I was wondering if anyone could give me some information about whether a >> p >> value can be associated with t maps generated in individual subjects >> (across one or two runs) for fMRI data. When doing group contrasts an >> uncorrected p value can be assigned based on the number of subjects >> (using >> that to determine degrees of freedom). However, what are the degrees of >> freedom for within subject analyses? Does it relate to number of TRs at >> all? >> >> The question stems from wishing to state the uncorrected p value >> associated with t thresholds from these maps that we used to extract >> BOLD >> timecourses. >> >> Thank you! >> Anne >> >> >> ------------------------------- >> Anne J. Blood, Ph.D. >> Director, Mood and Motor Control Laboratory >> Departments of Psychiatry and Neurology >> Athinoula A. Martinos Center for Biomedical Imaging >> Massachusetts General Hospital >> CNY 149-2301, 13th St. >> Charlestown, MA 02129 >> phone: (617) 643-2297 >> fax: (617) 726-7422 >> email: abl...@nmr.mgh.harvard.edu >> >> >> >> >> _______________________________________________ >> 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: https://gate.nmr.mgh.harvard.edu/filedrop2 > www.nmr.mgh.harvard.edu/facility/filedrop/index.html > Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > >
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