RE: Negative connectivity-behavior correlations
Hi Darren, I have similar questions regarding the negative connectivity-behavior correlations, did you get any answers to this? Thanks!
View ArticleError in importing ROI nifti files
Hi all, I'm wondering if I could get some help or an explanation as to why I keep getting the error below, and how I may be able to fix it: ERROR DESCRIPTION: ERROR: Subject 1 Session 1 ROI 9 file has...
View Articleerror while doing preprocessing
why conn ran into unexpected error everytime i try doing preprocessing.
View ArticleHow to add new subjects to existing project with a batch script (or merge)?
Hi, I've been trying for 2 weeks to figure out how to add in subjects with out having to use the GUI to input the file names. Once I get the files imported, I would like to use the GUI to run...
View ArticleRE: How to remove first-order derivatives of realignment parameters in...
[b]Dear Alfonso,[/b] The problem solved, the "batch.Denoising.confounds" command works perfect! Thank you! Best, Mohammad
View ArticleEffect size in seed-to-voxel multiple regression analysis?
Dear CONN experts, I carried out a multiple regression analysis to define effects of a behavioral covariate on seed-to-voxel functional connectivity of a seed. Between-subjects contrast was: All...
View ArticleICA analysis across multiple conditions
Hi, I have a methodology question about how ICA works. In CONN, I understand that ICA networks are determined by concatenating each subject and each condition temporally, and then using Fast ICA to...
View ArticleIncluding FieldMap in preprocessing
Dear all, I'm a naive CONN user, so I'm sorry if my question is very basic. Since we acquired FieldMap phase&magnitude files, I would like to include them in the first step of my resting-state...
View ArticleGenerate resting state images using CONN toolbox
We are searching for steps to generate a resting state graph using CONN toolbox. Is there any specific documentation that we can refer to ?
View ArticleData File Missing -- Can I get its full path?
After some changes to the filesystem, CONN reports a missing file ("CG.nii"). Is there a way I can recover the full path of that missing file, rather than just the filename?
View ArticleRE: Error in Preprocessing
I continue to get similar error messages during processing. The following is after running Denoising step. I was able to get past the preprocessing error by manually inputting realigned files and...
View ArticleRE: first level threshold
Hello, I am also interested in analyzing stats at the first-level. I tried running the code that Alfonso posted in this thread but got the following error:"Struct contents reference from a non-struct...
View ArticleError message in slice viewer
I have received an error message, whe I choise functional tools: slice viewer (I have matlab 2019b). I get the following error: Error using strfind PATTERN must be a string scalar or character vector....
View ArticleHow to compute a correlation between FC within a network and a quantitative...
Hello all, I would like to test the following: association between FC within a resting state network (DMN for example), and ratings of how people feel. I have my RS networks calculated, and am able to...
View ArticleDistribution of voxel-to-voxel connectivity values looks very similar pre-...
Hi all, I've run my preprocessing steps and about to move on to denoising, but I've noticed something strange. The distribution of connectivity values in the original looks very similar to the...
View ArticleRE: denoising (compcor) is shifting all correlation histogram means to zero
Dear functional conn comunity, I have been wondering the same thing. Denoising seems to shift the distributions towards having mean 0 (although in most cases there is a longer tail on the positive...
View ArticleICA analyses
Dear Conn users, I have a few questions of clarification regarding ICA analyses. I would like to specify that I have explored Conn's forum on many occasions, but I have not found a definite answer to...
View ArticleRE: Pending jobs after SGE processing
[color=#000000]Hi Eugenio,[/color] [color=#000000]I am curious about this, it seems like perhaps some issue with file permissions? (e.g. if CONN is not able to delete .dmat files generated by the SGE...
View ArticleRE: Aberrant FC distributions following denoising
Hi Alfonso, The dof after denoising are between about 9 and 13. Would you consider that too low? Notably, it is not the case that the runs with the fewest dof are also the runs with strange...
View ArticleTask-based gPPI a ROI-to-Voxel questions
Hi all, I have read all the related posts in gPPI and I have got lots of my question answered. I am using gPPI in CONN (seed-voxel) to compare between two groups (Young and Old) the association...
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