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Thanks Matt,
That does appear to be the case.
Amanda

On Wed, Aug 3, 2022 at 3:53 PM Matthew Webster <
[log in to unmask]> wrote:

> Hello Amanda,
> Do these “holes” in the skeleton for <blah>_tfce_tstat* correspond to
> voxels where the corresponding “raw” t-stat, <blah>_tstat*, is negative?
> This would be expected from how the TFCE scores are calculated, and so the
> 0’s in the *p* images would be correctly inferred.
>
> Kind Regards
> Matthew
> --------------------------------
> Dr Matthew Webster
> FMRIB Centre
> John Radcliffe Hospital
> University of Oxford
>
> On 3 Aug 2022, at 17:41, Amanda Rodrigue <[log in to unmask]> wrote:
>
> Hello again,
> I altered my design file as follows (demeaned sex-3 and age-4 and left the
> grouping variable 1/2 alone):
>
> design.mat
> /NumWaves 4
> /NumPoints 413
> /Matrix
> 0 1 -0.525423729 13.75544794
> 1 0 -0.525423729 16.75544794
> 1 0 -0.525423729 9.755447942
> 1 0 0.474576271 -12.24455206
> 1 0 -0.525423729 9.755447942
> 1 0 -0.525423729 -10.24455206 ....
>
> design.con
> /NumWaves 4
> /NumPoints 6
> /Matrix
> 1 -1 0 0
> -1 1 0 0
> 0 0 1 0
> 0 0 -1 0
> 0 0 0 1
> 0 0 0 -1
>
> For contrasts 2 and 5 (although I don't expect many significant
> differences when thresholding between .95-1), it still appears that the
> _tfce_tstat*, tfce_p_tstat*, and the _tfce_corrp_tstat* associated with
> those contrasts do not have values allocated to the whole skeleton
> regardless of what threshold I set. The original _tstat file does appear to
> have a value for all voxels in the skeleton. Is this correct?
>
> Thanks,
> Amanda
>
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-- 
Amanda Rodrigue, PhD
Boston Children's Hospital
Harvard Medical School
1 Autumn St.
Boston, MA 02215

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