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Dear Sir, Is there any way to convert Grey matter volume image into a row vector in matlab ? Thanks Vasudev On 26 January 2017 at 08:38, Dev vasu <[log in to unmask]> wrote: > Dear Sir, > > I want to pre process fMRI data and generate ALFF maps , there were some > tools provided by Dr. Calhoun for multimodal fusion of sMRI,fMRI,DTI using > mCCA+ jICA approach , following is the link to journal : > https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3666029/ > > > I would like to implement the same method in my scenario for which i would > like to generate ALFF maps for resting state data of each subject. > > > Thanks > Vasudev > > On 25 January 2017 at 22:40, Christian Gaser <[log in to unmask]> > wrote: > >> Dear Vasudev, >> >> in order to analyze 3D (voxel) measures on the surface it is necessary to >> map these measures from 3D space to the surface. This is not yet prepared >> for DTI data, but works well for fMRI data. Please use the function CAT12 >> -> Extract & Map Surface Data -> Map Volume (Native Space) to Individual >> Surface. The default values in newer versions (check that sample function >> is set to "Absolute Maximum") maps the absolute maximal values inside gray >> matter from the volume to the individual surface. These mapped values can >> then be resampled to template space for analysis using the function CAT12 >> -> Resample & Smooth Surfaces. Please note that it is recommend to rather >> map unsmoothed to the surface which are then resampled and smoothed on the >> surface. Smoothing on the surface is of some advantage. However, I have no >> experience with rfMRI data and don't know whether there any drawbacks to >> estimate rfMRI maps from unsmoothed data. >> >> The above described procedure allows to separately analyze 3D measures on >> the surface. However, I am not aware of a software that allows the analysis >> of multi-modal data to combine these measures. >> >> Best, >> >> Christian >> >> On Tue, 24 Jan 2017 15:33:26 +0100, Dev vasu < >> [log in to unmask]> wrote: >> >> >Dear all, >> > >> >I have multi modal imaging data (T1w,DTI,rfMRI) and i would like to >> perform >> >surface based preprocessing through SPM 12 , is there any tool box which >> >does such task, I know CAT 12 generates .gii images for Structural >> Imaging >> >data, is there any approach for DTI and rfMRI to generate surface files >> ?. >> > >> > >> >Thanks >> >Vasudev >> > >> >> >> >