RE: Question re compatibility versions
[color=#000000]Hi Maria,[/color] [color=#000000]All CONN modern releases "should" be compatible with Matlab R2013 or above, please let me know if you run into any compatibility issues [/color]...
View ArticleOrthogonalizing covariates
Dear Alfanso, In my design I have 2 groups and 3 covariates. I preprocessed using CONN tool box (very good one). I have 2 questions here. 1. Should I mean center (demean) all the covariate? 2. Should...
View ArticleRE: Average within / between network connectivity
Hi, I am attempting to use the conn_withinbetweenROItest script to run a dimensional regression analysis across a single group of participants. This analysis previously worked (as recently as about a...
View ArticleRE: Longitudinal analysis- second level analysis
Thanks Alfonso for your reply. In this study I have 61 patients, divided into 3 groups (20, 20 and 21 patients per group), 1- Would the model be overfitted as the number of covariate (14) is larger...
View ArticleRE: Comparing ICA Components temporal features to deficits
Looking for the same information!!!!! any tips? thanks, Roma
View ArticleICA match to template
Hi Alfonso, Thank you for all your help thus far. In the summary for iCA networks, under ICA tools, when selecting 'compute spatial match to template' I obtain 8 networks, and the best match for each....
View Articleconn_withinbetweenROItest in CONN v19.c
Dear experts, I am trying to the conn_withinbetweenROItest script to run a dimensional regression analysis across a single group of participants. This analysis previously worked (as recently as about...
View ArticleAccidentally overwrote 2nd level QC covariates!
Hello, I created a .m script in an effort to stream-line entry of of 2nd level covariates into CONN_x. However, I accidentally saved an erroneous version where I overwrote the QC_ variables listed in...
View ArticleRE: Parallel/HPC computing in CONN
Hi Alfonso, Thanks for the input. I found that the smoothing and analysis takes only slightly longer on one node/one core than on all cores available on a node (128), so it is definitely not worth the...
View ArticleRE: Orthogonalising the covariates
[color=#000000]Dear Ramesh,[/color] [color=#000000]There is no need to orthogonalize your covariates, as GLM can handle colinearity among predictors without any issues. Generally, if your design matrix...
View ArticleRE: Initial steps with CONN: Issues while Preprocessing
[color=#000000]Right, that is strange, the header information in that file looks perfectly fine so it may just be some version issue, I would suggest to run [/color][b]conn_checkdistributionfiles...
View ArticleCannot load RS data from HCP
Hello, I am trying to load (manually for now) some RS files rfMRI_REST1_LR_hp2000_clean.nii from the HCP and I get an error (see below). The file is not corrupted, I can open it in SPM. I saw in a...
View ArticleCovariates for the second level analysis
Hello! I need a help for setting covariates for the second level analysis. The experiment was conducted like this; Group 1 (took real medicine) : baseline and 1 year after the first visit Group 2...
View ArticleFitting in macaque template
Hi CONN toolbox researchers, I am currently working on macaque data, and would like to analyze the functional connectivity change in macaque brain? Could you kindly help us or tell us how to fit in...
View Articleerror during Denoising when adding imported confounds/regressors
Dear experts, I encountered this error message that I don't how how to solve during the Denoising step. I preprocessed my raw data in fmriprep, and have successfully uploaded the preprocessed...
View ArticleOverwriting second-level covariates
Hello, I previously ran a seed-to-voxel analysis and imported the values from my two sessions in order to quantify changes in the calculator tool. I have now added several new subjects and rerun the...
View ArticleRE: Seed-to-voxel within ROI analysis
[color=#000000]Hi Alfonso,[/color] Regarding this. It seems that CONN is not using the mask in Setup.Options once the whole preprocessing and estimations were done with a previous (bigger) mask. I...
View ArticleRE: When to center the second-level covariates to the mean?
Hi Alfonso, Thanks so much for your reply! I am very new to CONN and I have a follow up question about setting up second-level covariates to control for motion effect between subjects: The project that...
View ArticleICC is problematic ?
Dear all, We have used a standard pre-procesisng pipeline to get ICC images from CONN which we related to behavioural scores. Two of our reviewers don't seem to like ICC for reasons detailed below. May...
View ArticleQC distribution of all subjects error
Dear Experts, I took print of QC distribution of all subjects, but in the graph the quartile distribution is not clear. I did not understand what id the issue. Could you please have a look on the...
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