Hi all, I wanted to create Functional connectivity matrix from resting state fMRI time series. I used './rfMRI_REST1_LR_Atlas_MSMAll_hp2000_clean.dtseries.nii' file to do so, but MATLAB could not create the correlation matrix as its size was ~69GB. Therefore I think there is need for some way cluster the voxels into parcellations in order to reduce the size of the correlation matrix.
I found out from HCP_FAQs ( https://wiki.humanconnectome.org/display/PublicData/HCP+Users+FAQ#HCPUsersFAQ-3.IseethatHCPdistributesgroupaveragedenseconnectomefiles.Doyoualsoprovideconnectivitymatricesforindividualsubjects? ) that already parcellated time series files (*.ptseries.nii) are available in the dataset. Could anyone help me me finding the parcellated cifti files in HCP-900 dataset or a workaround to the same? Moreover, am I using the correct dtseries file out of the other alternatives? And, which series should I go with for task fMRI data? Regards & Thanks, Govinda _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
