RE: segmentation of functional data
Hello, once I denoise the data by means of the masks stemming from segmenting the functional data, how can I assure that this procedure works well? What we did was to extract time series from a set of...
View Articlere-use .mat file
Dear Conners, I stopped functional and structural images preprocessing because I forgot to add one pre-processing step. I would like to use the same .mat file that in the previous analysis in order to...
View ArticleGraph theory after 1st level regression
Hi Alfonso, I posted my question in another thread but I guess it's too long a thread to keep track of the messages, so I'm posting it again as a new topic. I have run a bivariate regression analysis...
View ArticleRE: Error in CONN after Denoising
Alfonso, Checking Voxel-to-Voxel was the only option I checked when I did the first iteration of the analysis (I was under the impression that I could do gPPI as part of a voxel-to-voxel analysis, but...
View ArticleError with file mask_swu
Dear Alfonso, I apologize for writing so soon after my last message. We were recently reloading/relinking some files that had their directory names (path) changed, and happened upon the below error...
View ArticleRE: Laterality Analysis in CONN?
[i]Originally posted by Fran :[/i][quote]Hi Alfonso, I finally managed to start working on the analysis as you suggested. I run analyses on "all subjects", "patients" and "controls", separately and got...
View ArticleAnalysing resting-state fMRI data
I am relatively new to working with fMRI data and have a basic question regarding usage of connectivity toolboxes. I have 2 groups of sample data: Patient and Control; both processed using the same...
View ArticleYour advice on laterality analysis (Alfonso?)
Hi Alfonso, I finally managed to start working on the analysis as you suggested. I run analyses on "all subjects", "patients" and "controls", separately and got some interesting results. For example,...
View ArticleRE: second-level analysis in Conn
Hi Alfonso, I have one question and hope that you can help us with this question. Our analysis has revealed various effects. One in particular is showing a positive correlation between FC and social...
View Articlez= inf meaning?
Hi everyone, I'm sure I'm the only CONN user who still doesn't know what z= inf means in the connectivity results shown on spm. Could you please explain? Thank you F.
View ArticleRE: A couple if issues: confounds, ART, MVPA stat
Dear Alfonso As always, I highly appreciate your answer! THANK YOU! Just to make sure I understand your point on the MVPA statistics. Running non-parametric stats for MVPA-components (eye(8)) on the...
View Articlepositive/negative connectivity analysis?
Hi, I wonder how to tell, from second level analysis, if a given seed positively or negatively correlates with a cluster that appears to be significantly connected. Anyone?? Thank you F.
View ArticleMatlab warnings & queue job issues
Good afternoon CONN community, First, thank you to the developers for creating and maintaining this project! Several of us have shifted as much of our data processing as possible to our cluster...
View ArticleDiscrepancy between GUI and Batch processing
Hi Conn Users, I have been wanting to batch the gui setup using conn_batch. I m using conn 13 with spm8 and both gui and batch run without any errors, however, the results dont match. The only two...
View ArticleRE: Surface display questions
Hello Alfonso, I haven't changed any of the surfaces provided by the toolbox. I do get different behavior depending on either the display driver (was using Nouveau when I posted the question, and after...
View Articlepartial correlation between pairs of seeds
Hi everybody, I have a doubt about how to look at partial correlation between pairs of seeds. So, I have set up my study using 5 ROIs. Two of them are "seeds", in the sense that I am interested in...
View ArticleRE: Task-based FC vs PPI
Hi! If one measured PPI to determine the relative change in connectivity and then wanted to follow up with task-FC analysis to show the absolute connectivity values, would this be a good approach?...
View Article??between-source group comparisons??
Hello everyone, I have run a number of between-source comparisons to assess laterality (or lateralization) for a number of seeds. Now I have results for "all subjects", "controls" and "patients"...
View ArticleDenoised Data Output Option Problem
CONN produces denoised data files in NIFTI format that are concatenated across sessions. I have three sessions for most of my subjects and would like to separate out these sessions that I can then...
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