Hi,
please have a look first at :
http://www.fmrib.ox.ac.uk/fsl/randomise/index.html
Basically, what you need to do is to put simply the
*demeaned* RT for your 16 subjects in a design matrix
desing.mat and look for positive (I guess?)
correlation by setting up the contrast at 1 in your
design.con.
Then all you need to do is run randomise on your
*demeaned* tbss data (with the -D option):
randomise -i all_fa_skeletonised -m
mean_FA_skeleton_mask -o yourresults -d design.mat -t
design.con -D -n 5000 -V and for the correction for
multiple comparisons, please have a look at the manual
(-T or -c 2 for instance).
Hope this helps,
Gwenaelle
--- Jiansong Xu <[log in to unmask]> a écrit :
> Dear Friends:
>
> I'm trying TBSS. With the help of friends from this
> list, I have
> reached after tbss_4_prestats successfully (It is a
> major achievement
> for me!!). Now, I'm trying to assess the correlation
> between FA and
> reaction time of each subject. Could any one give me
> some suggestions?
> I have single group of 16 subjects.
>
>
> Best
>
> Jiansong Xu, M.D., Ph.D.
> Associate Research Scientist
> Dept. of Psychiatry
> Yale School of Medicine
>
> Connecticut Mental Health Center, Room S-100
> 34 Park St.
> New Haven, CT 06519
>
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