Defining an ROI (set of seeds)?
I am new to CONN and am trying to understand how I would define an ROI that is essentially a set of seeds at different locations? For example say I would like to perform a simple correlation analysis...
View ArticleRE: Gray matter mask, structural or functional?
Dear Alfonso, Thank you for your help and explanation. My goal is to obtain REX ROI activity extractions for atlas ROIs, but to not draw on voxels activity from outside of the field of view (because of...
View ArticleRE: MVPA Regression?
Thanks, Alfonso. So, when one examines the bar graphs for a regression model with the first N MVPA components (n=4), you get 8 bars, which I'm assuming reflects a set of bars for positive association...
View ArticlePreprocessing pipeline with skullstripped images
Hi, I have structural data that are already skullstripped. Would there be any issue with me running the skullstripped data through the default preprocessing pipeline as is? I didn't see a...
View ArticleRE: MVPA & Behavioral Measure
Hi all, I would be interested in finding out more about this too. Would you mind providing more information on how to use a data-driven whole brain approach (MVPA) to investigate which brain regions...
View ArticleRE: Skipping segmentation
I am able to resolve this issue by providing a dummy csf mask. Conn is able to run through the setup and generate the eroded files. However the eroded files are not being imported into the project once...
View ArticleRE: ART regression timeseries output
Hi Alfonso, Thank you very much for your response! This is very helpful to know.
View ArticleRE: Interpretation of gPPI results
Hi Alfonso, Any thoughts on the above? Kind regards Andrew
View ArticleCONN 19 b.
Hello CONN-experts, I have a question. How I can select an analyse of connectivity between twoROIs (e.g. right and left thalamuses)and other ROI's brain, in CONN gui. When my computer finished...
View ArticleRE: Selecting QC co-variate
Dear Alfonso, Thanks for this wonderful toolbox. On considering the mean motion for outliers detection, one subject showed mean motion more than outlier threshold (3rd quartile + 1.5 * interquartile...
View ArticleFalse B-estimates confound-corrected timeseries
Dear Alfonso, I am running into a problem when using the confound-corrected timeseries for first-level analysis in SPM. I have preprocessed and denoised my data using: - bandpass filter 0 - Inf - no...
View ArticleRE: ICA component's correlation to templates
Dear Alfonso, I see. Thank you very much :) Best wishes Yiquan
View ArticleRE: Voxel-to-voxel connectivity
Hello, Just wanted to re-circulate this, in case someone had some feedback! Thanks in advance, Panos
View Articlesimple questions from an unexperienced user
Hi, new to CONN and neuroscience in general (very unexperienced) so my questions are probably extremely simple which is why I haven't been able to find basic answers online! 1. If I'm doing a...
View ArticleRE: Interpretation of gPPI results
Trying this again. To recap: What is the difference in interpretation between condition-specific values extracted from a gPPI analysis, and those extracted from a weighted-GLM analysis? Specifically,...
View ArticleRE: Defining an ROI (set of seeds)?
Thanks Alfonso. However, when I do this I get SBC maps for each individual seed. How do I get an SBC map correlated against the mean signal from these seeds? I have attached a snapshot of how they show...
View Articleerror to run ROI-to-ROI analysis
Hello, I have this error when I run the ROI-to-ROI analysis with the ROI of the Harvard oxford atlas ERROR DESCRIPTION: Reference to non-existent field 'displayvoxels'. Error in conn (line 8727) if...
View ArticleRE: MVPA Regression?
[color=#000000]Hi Jeff,[/color] [color=#000000]You are right, the MVPA omnibus test is a multivariate test so there is no implicit directionality there. If you find a significant cluster A there you...
View Articlehow to determine lesion overlap with ROIs from CONNatlas
Dear CONN users, I work with stroke patients, and thus lesioned brains. I would like to exclude ROIs that are located into this lesioned area. I use the atlas ROIs provided in CONN. my question is...
View Articleatlas change with hpc batch script
Hello, I am going to use a High Performance Computing cluster, hence I am planning to adapt the conn_batch_humanconnectomeproject.m script and not use the gui. My overall goal is to conduct analysis...
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