On Fri, Nov 21, 2008 at 4:12 AM, liang wang <[log in to unmask]> wrote:

Hi FSL experts,

I have two questions on TFCE method when processing the FA data using TBSS.

1) In the randomise command, I initially didn't add -tfce but use -x term and got some uncorrected stat images (also voxelwise p images) and FWE corrected images. However, now I want to see the TFCE results, just don't rerun the data in terms of taking a long time. Considering the information in the TBSS website, I can apply the fslmaths command to existing stat images as follows:

fslmaths *_tstat1.nii.gz -tfce 2 0.5 12 newfile    (the set of -tfce maybe be changed depend on individual investigations).

I find that there is only one generated file (newfile.nii.gz). I guess this file is orignial tfce image and basiclly it includes very large number (e.g. > 100).
My question is how to threshold this file or convert the file into p images to get whether there is significant voxels.

Any suggestions? thanks.
Liang Wang



--
Liang Wang, Postdoc
Woodward Lab
Department of Psychiatry
University of British Columbia
BC Mental Health & Addiction Services
938 West 28th Avenue
Vancouver BC V5Z 4H4
Telephone: 1-604-875-2000 (ext. 4735)
Fax: 1-604-875-3871
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