ICA analysis
Hi! I am trying to analyze resting state fMRI data with conn. I had run ICA, and got the results. To find detailed description of ICA in conn (ie informax, GICA etc.), I tried to find study estimating...
View ArticleMVPA explained variance
Dear Alfonso, There is some option to obtain the percentage of explained variance for each principal component in MVPA analysis? Thanks for your help! Roger
View ArticleQuestions about using the Conn software
Hello, My colleague and I are learning how to use the Conn software to analyze task-fMRI data. We have used the fsl to analyze the task-fMRI data before, and we are wondering if we could import the...
View ArticleUploading FreeSurfer-processed volumes
Hello, First of all, I wanted to thank you for creating such an efficient and elegant software! I have been trying to upload to the latest CONN distribution (v.16.a) a few subjects that I have...
View ArticleRE: Adding covariates using does not work
It works like a dream, thank you so much for your help (and for fixing my silly typos)!!
View ArticleTemporal filtering question
Hi Alfonso, I have a question about the temporal filtering processs in Conn. I read on the forum that Conn uses Fast Fourier Transformation (FFT) to bandpass filter the data. Is this correct? Also, is...
View ArticleRE: ROI problem (csf)
I would like to verify the WM and CSF ROIs created when using the batch.Setup.cwthreshold. When the erosion flags are set an "e" is appended to the masks. This allows me to easily check the masks...
View ArticleRE: Setup
Once again I am confused. You are talking about smoothed and smoothed data. If I wanted to do all the preprocess outside of Conn (normalization, slice timing correction, distortion correction, etc)...
View Article2nd level analysis - ROIs lack symmetry
Dear Alfonso, I was hoping you might be able to help me with a query regarding second-level analysis in CONN. I have conducted a gPPI analysis (bivariate regression). I have a patient group, and a...
View ArticleRE: Errror in dynamic FC - again
[color=#000000]Dear Alfonso,[/color] [color=#000000]I ran into the same issue as mentioned by Eugenio.[/color] [color=#000000]Has there been an update on the patch?[/color] I am using CONN 16.1 in Mac...
View ArticleRE: Voxel degree centrality maps
Hello Arkan ! I am also trying to plot voxel degree centrality graphs using CONN. I am wondering whether CONN really has some feature which enables us to plot a degree centrality graph directly ? I...
View ArticleCustom mask.surface.brainmask.nii
Hello CONN forum, I have been trying to modify the default surface files (/conn/utils/surf/) to map ROI-to-ROI results onto a cat brain. We have a surface model made in FreeSurfer and I have been...
View ArticleRE: MVPA explained variance
[color=#000000]Hi Roger,[/color] [color=#000000]That makes sense. I would suggest, instead of analyzing each component separately (which would require a somewhat conservative multiple comparison...
View ArticleRE: conn gui error in 2nd level results display
[color=#000000]Dear Yong,[/color] [color=#000000]The latest CONN release (16b) includes a few fixes to try to better recover from this sort of scenario. Please give that a try and let me know if you...
View Articlebest way to close a conn project?
Dear Alfonso Sorry, I have a somewhat silly question... When I work on a conn project using the GUI, and want to upload or start a different project, what's the right way to do it so that my project...
View ArticleRE: Uploading FreeSurfer-processed volumes
[color=#000000]Hi Panos,[/color] [color=#000000]This issue has been fixed in the latest release (currently 16b). Please give that a try and let me know if you still run into any issues[/color]...
View ArticleRE: Denoising Residual Degrees of Freedom
Hi Alfonso, Thank you for all the helpful information you have already provided on this subject, however I am very inexperienced with MRI preprocessing so still have a couple of queries. I have just...
View ArticleConn Conjunction analysis
This is a simple question, but I am looking for a way to find statistically significant connections that occur in both of my two groups. I don't want any statistically significant connection that is...
View ArticleError loading functional data
Hi, I preprocessed my data in SPM and tried to select them in Conn. However, every time I select the 197 preprocessed files for one subject I receive following error: I already tried selecting...
View ArticleRE: Second level random effects analysis
Hi Alfonso Nieto-Castanon, I am not able to find the "launch REX gui". I have updated my CONN toolbox to the most recent version I believe (16b) and would like to extract the connectivity values...
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