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From: Srinivas R. <sra...@mr...> - 2014-12-03 18:29:09
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Hi Quanquan, Default mask uses voxels >= mean to determine in brain voxels. It might not work when temporal pre-processing is done on the data. You could use a custom mask (matching size of fmri data) defining the in brain voxels instead of default mask. Thanks, Srinivas On Wed, Dec 3, 2014 at 11:16 AM, Quanquan Gu <guq...@gm...> wrote: > Hi experts, > > I used the realigned, normlized, smoothed, detrended, filtered and > regressed ( with signals of WM, head motion, CSF regressed ) data sets to > do ICA. I don't know if it's appropriate, some studies used only smoothed > datasets. could you please help me to confirm it? And when I have chosen > the fmri data set (a group of nii files), a error message poped up, showing > : > > Creating Mask > Default mask includes voxels >= mean. Using first file of each subject to > create default mask ... > > ...................................... > Group ICA Error Information: > > > Error using icatb_createMask (line 176) > No voxels found. Error in creating Mask > > Error in ==> icatb_createMask at > 176 > > Error in ==> icatb_update_mask at > 39 > > Error in ==> applyCallback at > 1462 > > ...................................... > Error using icatb_displayErrorMsg (line 23) > > > Error in icatb_setup_analysis>applyCallback (line 1519) > icatb_displayErrorMsg; > > Error while evaluating uicontrol Callback > > is there something wrong with my data format or other settings I got them > wrong? > > Thanks in advance > > regards, > Carmen > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > > http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk > _______________________________________________ > Icatb-discuss mailing list > Ica...@li... > https://lists.sourceforge.net/lists/listinfo/icatb-discuss > |