error starting conn for the first time
Hi dear conn Users, I installed conn 16.b under MATLAB R2014a. Added the path in matlab. When running conn through MATLAB GUI through "conn" I get the following error descriptions displayed (see...
View ArticleReducing Disk Storage Use
Hello, In our lab we have multiple users who use CONN on a computing cluster. I was wondering if anyone knew of any strategies in reducing data usage when running many analyses? We are running into...
View ArticleRE: Regarding time series extraction
Kicking this to the top of the list because I'd like to know as well. Alfonso - what do the "ROI_SubjectXX_Condition000.mat" files refer to?
View ArticleFitting method for regression
Dear Alfonso I am conducting a multiple regression analysis in CONN for ROI-ROI connections with 5 2-level covariates. I wanted to ask which fitting method is used in CONN to fit the model? Is it least...
View ArticleChanging Results Viewer Atlas - SUIT
Hello, I am using Conn Toolbox to examine seed-to-voxel connectivity between ROIs within the cortex and voxels of the cerebellum. My voxel-level images have been normalized to SUIT space - is there any...
View ArticleRE: individual mean time series
Hi Alfonso, Thanks so much; that's really helpful. May I also ask a follow-up question? I noticed that we actually have two types of condition files, one with "Condition000" in the filename, and one...
View ArticleInteraction: treatment x symptomscores
Dear Colleagues I have a seamingly simple question for the second level seed2voxel analysis, where we are interested inthe effects of a treatment in relation to a numeric symptom score. So we have two...
View ArticleWhy are we getting "Nan"
Hi Alfonso, We have two questions regarding Conn and hope that you can help us. Before asking you the questions, let me quickly summarize our study. We are looking at the correlation between functional...
View ArticleMeaning of "Proportional to stats" option
Dear Alfonso, dear list, here is a simple question i could not find the answer for. When I display 2nd level results of ROI-to-ROI analyses, I can color significant effect by stats (Connections |...
View ArticleGM/WM/CSF masks and coordinate spaces
Dear conn-team, after preprocessing and denoising, I find a number of new .nii-files in my subject's folder. Regarding this, I have these questions: 1) I assume the following (my question is: are the...
View Article2nd Level Analysis
We have run 1st level analysis on multiple individual subjects, have merged the subjects, and are now trying to run 2nd level analysis. We are getting the following error message: Matrix dimensions...
View ArticleRecursive Seed to Voxel Analysis
Is it considered statistically 'kosher' to delineate the network connectivity differences between two groups of subjects (i.e. controls > ADHD) by running an initial seed to voxel analysis with a...
View Article2nd level analysis
Dear brain reseachers Please let me know about the 2nd level analysis. I have two groups, patients and the controls. I have done between group comparison by ROI-to-ROI analysis including age as a...
View ArticleBetween session contrast
Good evening, I'm currently running a resting state analysis for a study in which each participant was scanned 5 times. In the setup step of Conn Toolbox I've loaded each participant's anatomical image...
View ArticleROI-to-ROI: exploratory analysis & thresholds
Dear Colleagues I want to run an exploratory analysis possibly including a whole-brain parcellation (to make it exploratory). I use the ROI-to-ROI approach with multiple seed ROIs and the default atlas...
View ArticleMulticenter study: center as a covariate
Hi, I am analyzing a multicenter study. Data were acquired at five different centers which I would like to include as covariates of no interest in my seed based analysis. I have a single resting state...
View ArticleExclude ROIs in individual patients
Dear all, I have fMRI data series for several subjects. I also defined 10 ROIs for each patient. In a few cases, I need to exclude certain ROIs for a single patient, since the a priori defined ROI...
View ArticleError on Second Level Analysis results explor
I am doing a resting state analysis looking at DMN connectiity using the Conn Toolbox. When I open the results explorer, I get an error message. I don't really know where to start in order to figure...
View ArticleCONN ROI without binary coding
Hello, I have two questions regarding inputting an image file with a single ROI, thresholded by intensity (e.g., from ICA) but NOT binarized: 1. Will the resulting time-series for this ROI be weighted...
View ArticleConfound effects beta-maps
Dear CONN experts, I have 3 sessions of block-designed task with two task conditions. I performed denoising step with the following confounds: WM, CSF, movement, scrubbing, effect of condition 1 and...
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