CONN workshop
Hi everyone, Just a heads up to let you know that the [url=https://web.conn-toolbox.org/workshops]CONN workshop [/url]will be starting in a couple of weeks (on Friday April 16th, 2021) and there is...
View ArticleRE: WARNING: possibly incorrect model
Hey Alfonso, I am following up on the previous comment. I have reattached the Warning Info doc, now with more variable information. The contrasts creating warning problems (12 in total, 5 included in...
View ArticleHow to keep subject name as input file name when importing instead of...
Our lab just started using CONN and use the GUI. We can't figure out how to keep the name of our participants/their 5 digit code when importing their data since the subject names automatically show up...
View ArticleRE: seed to voxel and roi to roi analysis, networks
[color=#000000]Dear Agurne,[/color] All are perfectly reasonable options, but if you select the seeds individually then you should apply an additional multiple-comparison correction (e.g. bonferroni on...
View ArticleRE: Can I load corrected_BETA*files into CONN again to extract the...
[color=#000000]Sure, that should be no problem at all, simply overwrite the original BETA* files with the corrected ones and then any second-level analyses will be using those corrected fALFF volumes...
View ArticleROIs data extraction
Hello CONN users, These days I'm working on my first fMRI data analysis using CONN toolbox. One of the things which I am interested in is time-series data extraction from ROIs defined by an atlas....
View ArticleROI-to-ROI gPPI analyses
Dear CONN toolbox experts, Hi, I'm learning how to use CONN (version 19) for ROI-to-ROI gPPI analyses. Although I have studied the manual carefully and watched the data analysis videos shared by...
View ArticleConjunction in CONN
Dear experts, I am conducting the task-FC in CONN, and would like to find the common connectivities at the network level between two groups. However, it seems like the contrast [1 0 0; 0 1 0; 0 0 1]...
View ArticleRE: Error message - Reference to non-existent field 'X1'.
+1 - also getting this error consistently when attempting to do rsfmri connectivity analyses with a imported atlas - any insight would be appreciated! ERROR DESCRIPTION: Reference to non-existent...
View Articlereference to non-existent field?
Hello, I'm attempting to develope a pipeline for ROI to ROI analyses on 5 subjects (full dataset is 200 subjects). I have successfully imported the preprocessing functional and structural files using...
View ArticlePostdoctoral opportunity at Brown University
Dear colleagues, Brown University's Department of Psychiatry and Human Behavior is seeking an outstanding postdoctoral candidate with a strong background in neuroscience, psychology, or cognitive...
View ArticleAdding ROIs post analysis
Hello, I would like to extract FC values from new ROIs. I previously completed the CONN analysis pipeline with a large set of data, and now have new ROIs that I would like to extract from. Is it...
View Article2nd level covariates per volume, per person?
Hello, I'm wondering if it is possible to get 2nd level covariate values (like CSF and white matter values) per volume, per person? I'm trying to make a text file per participant, in order to include...
View ArticleThresholding in CONN for ROI to ROI analysis
Dear CONN experts, I am very novice to CONN toolbox and first time I'm using it for the analysis of resting state fMRI data. I was successfull till second level analysis and got stuck here. My querries...
View ArticleUploading ROI masks
Dear Alfonso In the newest version of CONN, how can I upload ROI files? In the Setup tab, I only see an option for creating ROIs from MNI coordinates but I have anatomical ROIs from a previous study...
View ArticleRE: Smoothing kernel in CONN
[color=#000000]Hi,[/color] [color=#000000]You may check your project log for that information (from the GUI select 'Tools. Log History', or manually edit the logfile.txt file in your conn_* project...
View ArticleRE: Scrubbing & task-based fMRI
[color=#000000]Hi Natasha,[/color] [color=#000000]Scrubbing is performed by regressing-out the effect of the outlier scans during denoising (rather than by "eliminating" those invalid scans, since, as...
View ArticleRE: extracting connectivity values in CONN vs SPM
[color=#000000]Hi Alexandra,[/color] [color=#000000]They are very similar but not identical, I believe the main difference is that SPM extracts the [b]1st eigenvariate[/b] from the selected voxels...
View ArticleWhite matter dimensions denoising step
Hi Conn users!! I am wondering about how "correct" is to change the dimensions of the white matter or CSF confounds in my data. There are a couple of subjects in which the distribution curve of the...
View ArticleRE: WARNING: possibly incorrect model
[color=#000000]Hi Mikey,[/color] Yes, those between-subjects contrasts are likely all non-estimable due to a range of issues, from some of your models having multiple redundancies (e.g. in the PTS...
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