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Hi Gabbo, What is the content of 4dfuntionalmaps? All the best, Anderson On 8 May 2017 at 17:04, Gabbo Ramírez García <[log in to unmask]> wrote: > In fact, I create just a 4D image with the CTRL and PAT subjets and ran > the comand line. I dont have idea how compare the maps obtained by seed > analysis in the CTRl group and PAT group to find the diferences between > groups. > > > > RG > > > ------------------------------ > *De:* FSL - FMRIB's Software Library <[log in to unmask]> en nombre de > Rosalia Dacosta Aguayo <[log in to unmask]> > *Enviado:* lunes, 8 de mayo de 2017 02:25 p. m. > > *Para:* [log in to unmask] > *Asunto:* Re: [FSL] group analysis > > Dear Gabbo, > > Just two simple questions....if you are doing seed analysis...what are you > comparing with those contrasts?...did you used motion correction parameters > as covariates and a white matter mask to regress out for de white matter > signal? ....did you use FEAT? > > El 8 may. 2017 21:08, "Gabbo Ramírez García" <[log in to unmask]> > escribió: > >> These are the files of contrast and matrix >> >> >> >> *design.mat * >> >> >> /NumWaves 2 >> >> /NumPoints 12 >> >> /PPheights 1.000000e+00 1.000000e+00 >> >> >> /Matrix >> >> 1.000000e+00 0.000000e+00 >> >> 1.000000e+00 0.000000e+00 >> >> 1.000000e+00 0.000000e+00 >> >> 1.000000e+00 0.000000e+00 >> >> 1.000000e+00 0.000000e+00 >> >> 1.000000e+00 0.000000e+00 >> >> 0.000000e+00 1.000000e+00 >> >> 0.000000e+00 1.000000e+00 >> >> 0.000000e+00 1.000000e+00 >> >> 0.000000e+00 1.000000e+00 >> >> 0.000000e+00 1.000000e+00 >> >> 0.000000e+00 1.000000e+00 >> >> >> >> *design.con * >> >> /ContrastName1 CTRL>PAT >> /ContrastName2 PAT>CTRL >> /NumWaves 2 >> /NumContrasts 2 >> /PPheights 1.000000e+00 1.000000e+00 >> /RequiredEffect 5.042 5.042 >> >> /Matrix >> 1.000000e+00 -1.000000e+00 >> -1.000000e+00 1.000000e+00 >> >> >> ------------------------------ >> *De:* FSL - FMRIB's Software Library <[log in to unmask]> en nombre de >> Rosalia Dacosta Aguayo <[log in to unmask]> >> *Enviado:* lunes, 8 de mayo de 2017 02:03 p. m. >> *Para:* [log in to unmask] >> *Asunto:* Re: [FSL] group analysis >> >> Hi Gabbo, >> >> It seems that something went wrong with your design. To see it, we need >> to see your design.mat and design.com. >> >> Rosalia >> >> El 8 may. 2017 20:59, "Gabbo Ramírez García" <[log in to unmask]> >> escribió: >> >> The problem is that the image resulting is a image with just a 0.99 >> value, in fact is a wstrange result for that reason I guess that something >> is wrong. >> >> >> I want to do Two-Sample Unpaired T-test, because I have a control group >> and a patients group. for that reason I did used tha command line. >> >> >> I dont know if I am missing some step. >> >> >> RG >> >> >> >> ------------------------------ >> *De:* FSL - FMRIB's Software Library <[log in to unmask]> en nombre de >> Blazej Baczkowski <[log in to unmask]> >> *Enviado:* lunes, 8 de mayo de 2017 01:44 p. m. >> *Para:* [log in to unmask] >> *Asunto:* Re: [FSL] group analysis >> >> Hello >> >> It is difficult to guess what your problem is based on your description. >> What type of error do you get? >> >> It seems that you want to run a two sample t test. For this you need to >> specify .grp file -- information on exchangeability, which is missing in >> your command line. >> >> Best, Blazej >> >> On 8 May 2017 at 20:11, RGuser <[log in to unmask]> wrote: >> >>> Hello FSLuser >>> >>> I am doing seed-analysis for functional resting state images. I get the >>> main signal of some seeds and correlate that signal with the global signal >>> of the brain by Pearson correlation and the resulting image have p- values. >>> I have two groups and now I want to compare the functional maps resulted >>> after correlation signal seed - signal brain. >>> >>> I used this line to do it but it did not work. >>> >>> randomise -i 4dfuntionalmaps -o result -d design.mat -t design.con -m >>> mask.nii.gz -n 500 -T >>> >>> If somebody can help me I will be thankful. >>> >> >> >>