regression between connectivity and behavioral data
Dear Alfonso， I performed a voxel-wise connectivity analysis with seed at PCC for a lifespan data, and now 1) I want to examine the sex, age, and the sex*age effects on the connectivity by multiple...
View ArticleError starting preprocessing
Dear community, I just want to start [b]default preprocessing pipeline for volume-based analyses (indirect normalization to MNI-space) [/b]but the following error message appears. All structural,...
View ArticleAP/PA pair Fieldmap in CONN
Hello, I am trying to apply fieldmap, which is the anti-parallel two acquisition (anterior<->posterior), in the preprocessing in the CONN. First, my data is in BIDS format and CONN couldn't...
View ArticleRE: scrubbing denoising step
ILka, I've had this same problem. I think this stems from the number of scans that are to be scrubbed for that participant. I've found that despiking sufficiently improves the QC-FC relationships and...
View Articleweighted-GLM and effect of task in denoising step
Hi all, I am running a weighted-GLM task-based functional connectivity analysis across several condition using an event-related design. Could someone help clarify (or point me to literature) as to why...
View ArticleRE: activation in conn.15d
Dear Alfonso, catching up on this topic, I am also interested in running an activation analysis in conn. The aim is to identify task-related maps (event-related regressors) from which I will save...
View ArticleRE: No option to select gPPI as analysis type from Analyses (1st level) tab
Hi Julia, I´m having the same exact problem (can´t display other options besides functional connectivity and the layout is quite different). I recently updated CONN to its latest version. Did you...
View ArticleSLURM Distributed Computing - Step 4/7 Importing Functional
Hi all, I am working with a dataset of 200+ participants, the majority of which have 3 separate scans. I'm running SPM12, CONN17, and MatLab2019. We have a SLURM cluster and all the data is stored on...
View ArticleRE: Changing Analysis Mask
I'm also curious in the answer to this - anyone have any suggestions? [i]Originally posted by ksellnow:[/i][quote]Dear Alfonso and all, My team and I are all currently trying to work on the same...
View ArticleRE: regression between connectivity and behavioral data
[color=#000000]Dear Rul,[/color] Re:(1) almost correct, but instead of [0 1 1 1] specify there, either: [color=#000000]a) the specific term that you want to analyze; e.g. [0 0 0 1] will test sex*age...
View ArticleRE: Denoising for task related fMRI and using different toolboxes
[color=#000000]Dear Marko,[/color] [color=#000000]Using CONN for preprocessing and denoising your data before SPM-based functional activation analyses is perfectly fine (particularly since CONN's...
View ArticleF-test Post-hoc
Dear All, I have a question regarding the post-hoc tests / contrasts in CONN toolbox. I have 3 groups (AD, MCI, HC) and I conducted first F tests using the [-1 1 0;0 -1 1] contrast. I found significant...
View ArticleCalculating QC MeanMotion and Framewise Displacement before scrubbing
Hi conn experts, I'm trying to get mean motion and framewise displacement second-level covariates before scrubbing is done. My QC MeanMotion second-level covariate says "Average motion observed...
View ArticleRE: Second-level analyses setup for behavioral measure regression for a...
Alfonso, to partially answer my own question, it seems I found my conceptual error. In my setups using AllSubjects, the analysis includes all 150 participants, even when using a covariate that has 0...
View ArticleError in creating VDM file during preprocessing
Dear Conn users, I'm fairly new to the Toolbox but already appreciate how user friendly it is. However, I ran into an error shortly after starting my preprocessing pipeline. I wanted to start the...
View ArticleRE: Changing Analysis Mask
[color=#000000]Hi Alfonso,[/color] [color=#000000]Thanks for the reply! The plan is to compute a masked IC measure as you listed in option b. Let me know if I can provide any more details about the...
View ArticleRE: No option to select gPPI as analysis type from Analyses (1st level) tab
Hi Alfonso, That was it! I should have been a bit more thorough! Thanks for your time! Luis
View ArticleRE: SLURM Distributed Computing - Step 4/7 Importing Functional
Thanks, Alfonso! You were spot on - switched over to version 20b and the parallelization is working seamlessly. :) Best, Kate
View ArticleRE: how to employ func.gii to perform surface-based FC analysis?
Hi everyone, I'm wondering the same thing: How to import surface based functional data from fMRIPrep preprocessing, i.e. left and right hemisphere .gii files? As I understood it you have to input T1...
View Articledo all datasets go through denoising?
Hi everyone, for a surface-based analysis we want to extract the BOLD signal from the different secondary datasets (e.g. unsmoothed volumes, subject-space data and so on). Do all the datasets go...
View Article