help > Region-to-voxel option in CONN?
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Jul 29, 2024  11:07 PM | Calvin Hew
Region-to-voxel option in CONN?

Hi, sorry if it's a dumb question but from what I understand, the network we get from first level analysis is essentially Region to Region (ROI-to-ROI) matrix e.g. load resultsROI_Subject001_Condition001.mat


Are we able to get Region to voxel networks in a similar manner? I am asking because I am able to import these ROI-ROI matrices into python for ML. But I also want to try for Region to Voxel as suggested by a paper I read. 


If anyone could enlighten me, I'd really appreciate it! Thank you

Aug 6, 2024  10:08 PM | Alfonso Nieto-Castanon - Boston University
RE: Region-to-voxel option in CONN?

Hi Calvin,


Yes, in CONN nomenclature that is called "SBC" (for Seed-Based-Connectivity), computing the connectivity/correlation between a seed region and each voxel in the brain. You may define a new first-level analysis and select the SBC option, and then select which region(s) you may want to include as seed(s), and CONN will create a new BETA_*.nii NIFTI image for each seed (and subject/condition) containing those connectivity maps.


Hope this helps


Alfonso


Originally posted by Calvin Hew:



Hi, sorry if it's a dumb question but from what I understand, the network we get from first level analysis is essentially Region to Region (ROI-to-ROI) matrix e.g. load resultsROI_Subject001_Condition001.mat


Are we able to get Region to voxel networks in a similar manner? I am asking because I am able to import these ROI-ROI matrices into python for ML. But I also want to try for Region to Voxel as suggested by a paper I read. 


If anyone could enlighten me, I'd really appreciate it! Thank you