RE: Dynamic FC factor loadings
Hello Alfonso, I'm not sure if you've had a chance to see this post, but I wanted to make sure it didn't get buried. I was wondering if you could please provide an explanation about the dynamic...
View ArticleRE: Errror in dynamic FC - again
Dear Alfonso, Thank you very much, no further issues have been reported using CONN16b. Best wishes J.
View ArticleBatch Multiple ROIs per file
Hello, I have two ROI files per subject, and each contains 8-subject specific ROIs. In the GUI, one can simply click the 'multiple ROIs' box for CONN to recognize all of the ROIs in each file. I had...
View ArticleRE: How to use "age" as covariates?
Hi CONN-ers! I have a similar question, but want to make sure I'm not over-generalizing to my data. I have a group comparison between patients and controls and I'd like to see the effect of variables...
View ArticleRE: Custom mask.surface.brainmask.nii
[color=#000000]Hi Daniel,[/color] [color=#000000]The mask.volume.brainmask.nii and mask.surface.brainmask.nii files are only used as potential analysis-masks (when selecting those in the Setup.Options...
View ArticleRE: Output raw correlation (r^2) values
[color=#000000]Hi Kevin,[/color] [color=#000000]Yes, in the [i]second-level results [/i]ROI-to-ROI tab, simply select all of your seeds/source ROIs of interest in the 'seeds/sources' list, and select...
View ArticleRE: ROI-to-ROI various p-FDR corrections question
[color=#000000]Hi Jeff,[/color] [color=#000000]The p-FDR analysis-level correction is typically used when you want to make inferences about individual connections. It corrects the individual...
View ArticleRE: Preprocessed fMRI data into CONN toolbox
[color=#000000]Hi Talia,[/color] [color=#000000]Typically the way to perform surface-level analyses in CONN from FreeSurfer-processed data is the following:[/color] [color=#000000]1) in...
View ArticleIssue with ART-based scrubbing procedure
Dear Alfonso (or anyone else who may be able to help!), I am trying to apply the ART-based scrubbing procedure to my mostly preprocessed (external to CONN) dataset. I have tried both saving my...
View ArticleRE: Default preprocessing pipeline with BATCH?
[color=#000000]Hi Sascha,[/color] [color=#000000]To run the entire preprocessing pipeline using batch commands simply add the line:[/color] [color=#000000] batch.Setup.preprocessing.steps =...
View ArticleRE: Unplausible first-level results
[color=#000000]Hi Ami,[/color] [color=#000000]My guess would be that this reflects a misalignment/miscoregistration between the ROI definition files and your functional data. Standard preprocessing...
View ArticleRE: Use of different dimensions of seed ROIs?
[color=#000000]Hi Daniel,[/color] [color=#000000]Typically the first dimension is the one being most commonly used/reported to characterize each ROI. In particular, when extracting multiple dimensions...
View ArticleICC Technical Question RE: Step Function?
[color=#000000]Hi Jeff,[/color] [color=#000000]Not exactly, GlobalCorrelation is still a weighted metric, in particular it is simply computing the row-average of the voxel-to-voxel correlation matrix...
View ArticleRE: Between session differences in movement
[color=#000000]Dear Isabella,[/color] [color=#000000]If I am understanding correctly, in order to check for potential differences in movement across the two sessions simply select in the predictor...
View ArticleRE: Fix effect analysis
[color=#000000]Dear Katia,[/color] [color=#000000]Sorry but fixed-effect analyses are not available in any of the more recent CONN versions. You may check this thread...
View ArticleRE: Voxel-Voxel Analysis : Unresovable error
[color=#000000]Hi Sneha,[/color] [color=#000000]Regarding the mis-registration shown in the [i]Denoising [/i]display, in your case that perhaps represents an incorrectly defined analysis mask? (look in...
View Articleevent-related functional connectivity
Dear experts, I am wondering if CONN could be used for event-related designs? Many thanks for any advice, Best regards, Bahri
View Articlehow to get the subtract of two image in CONN
Hi all, I am new to CONN and also neuroscience. I am wondering if CONN has the feature to get subtract of two image in order to find the changes between different sessions? if not, what is the best...
View ArticleFieldMap PhaseMap error (fixed)
Hi, In CONN 16a and 16b, we were getting a weird error in CONN when we input the vdm files in .nii using the PhaseMap pipeline without using the batch. The error said it could not find an "fmfile" in...
View Articlecompcor clarification
Dear Alfonso, I am doing some tests on the aCompCor method and till now I was not able to reproduce the exactly same denoising results of CONN. I wanted to ask you what the 5 dimensions exactly are....
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