Error after Denoising
Dear CONN experts, I am trying to run an analysis with 45 subjects and two sessions. After running denoising I got the following error description: ERROR DESCRIPTION: Unrecognized field name "X1"....
View ArticleMixed effects model for repeated subjects?
Hello all. I have a fairly simple resting-state functional connectivity analysis that I am doing, where the contrast at the first-level analysis is just a type of stimulation being off or on, let's...
View ArticleROI-to-ROI connectivity analyses with additional atlases
Dear CONN experts, I am doing a ROI to ROI connectivity analysis in CONN (v2020b). Along with the "anatomical" AAL parcellation, I would like to use other "connectivity-based" brain parcellations...
View ArticleRE: confounds in preprocessing: when to include main session- or task- effects ?
quick follow-up to my question: Alfonso had already explained it in detail in the post below https://www.nitrc.org/forum/forum.php?thread_id=12454&forum_id=1144 sorry for creating redundancy
View ArticleContinuous subject-level covariate of interest
Hi, I collected skin conductance (SC) data during fMRI, and I would like to use the SC as a regressor of interest (at the individual level) in an analysis that tries to identify edges that correlate...
View ArticleRE: Question on second level ROI-ROI FNC omnibus test
[color=#000000]Bumping this post up![/color] [color=#000000]Additionally, is there a way to perform a two sample t-test assuming unequal variance (i.e., Welch's test)?[/color]...
View ArticleExcluding ROIs for Certain Subjects
Hi all, I'm trying to run second level ROI-to-ROI analyses with the GUI. Some of my subjects have low signal in certain ROIs due to drop out, and although CONN has calculated first level FC values for...
View ArticleLoading results from a complete study / using 3 conditions?
Hello, I'm trying to load the results from a published paper that used CONN to look at how they ran their analysis (then hopefully follow their analysis steps with my own data). They have their raw...
View ArticleROI to ROI second level results in Results Explorer (Cluster vs Connection...
Hi Conn Community, I've been working on a gPPI analysis in conn contrasting two different conditions for some time now, and have some potentially interesting results. I've come across something that...
View ArticleInterpreting multiple regression
Hello! If I run a joint-regression using 3 covariate (X Y and Z) and find a significant interaction between right accumbens and the right angular gyrus would the following statement be correct."We...
View ArticleRE: Error using conn_importcondition (line 199)
Hi, Just following up on my previous questions, would anyone be able to help? I am still unable to understand this error: [i]Error using conn_importcondition (line 199)[/i] [i]multiple rows for...
View ArticleRE: v20b Preprocessing stuck at ART
[color=#000000]Hi,[/color] I had the exact same issue and the patch fixed it. Thank you so much! Giuseppe [i]Originally posted by Alfonso Nieto-Castanon:[/i][quote][color=#000000]Hi Ryan, [/color]...
View ArticleRE: ROI-to-ROI connectivity analyses with additional atlases
[color=#000000]Dear Giuseppe,[/color] [color=#000000]In practice those differences are often considered sufficiently small not to be worrisome, perhaps mainly because there are many other potential...
View ArticleSubject-specific ROIs in CONN batch
Hi Alfonso! I'm trying to use a CONN batch script for my analysis, but I'm not sure how to specify that my ROIs are subject-specific. I have attached the script I am using. Thanks in advance! Pavan
View ArticleRE: Continuous subject-level covariate of interest
[color=#000000]Thanks so much, Alfonso. This is incredibly helpful.[/color] [color=#000000]I'll give it a try and follow up if I run into trouble.[/color] [color=#000000]Rany[/color] [i]Originally...
View Articlefalse positives correction and multiple comparisons
Good Day to you all. I am relatively new to Conn. We have submitted a longitudinal study with a small cohort (16 subjects) and analysed the effect of medication after one year using seed-based...
View ArticleSubject-specific ROIs in CONN batch
Dear Alfonso & the CONN community, I am using batch code to conduct my analysis - my ROIs are subject-specific, but I don't know how to specify this in the script. My current script is attached....
View ArticleRE: Errors saving in version 13.o
Thanks Chaleece, for letting us know about the solution. It saved me from a lot of confusions.
View ArticleError overwriting data
Hi conn users! I am trying to overwrite some results of my project, but I keep getting this error: "Could not open file '....../rp_*.txt', no such file or directory". According to the path it shows for...
View ArticleRE: Mixed effects model for repeated subjects?
[color=#000000]Hi all, can I bump this? I am just wondering how to use the "Sessions" option in the case of multiple sessions per subject, and also in general a mixed effects model with unequal N,...
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