Quantcast
Channel: NITRC CONN : functional connectivity toolbox Forum: help
Browsing all 6859 articles
Browse latest View live

Installation via standalone files-broken link

Hi -  I would am interested in installing Conn without MATLAB.  I will install on a 64bit Linix installation.  The link for the instructions on the installation page is broken. Does anyone have the...

View Article


Pragmatic graph theory definitions

Hi Conn community, I'm a newbie to the world of graph theory, so apologize in advance for the simplicity of these questions. I'm trying to wrap my head around some of basic terms in a practical way,...

View Article


ROI.mat fields (ROI-ROI analysis)

Hello,  I know that the fields in the ROI.mat struct have been explained [url=forum.php?thread_id=7219&forum_id=1144]here[/url] but I still have some additional questions. Attached is a screenshot...

View Article

Import ROI step : problem with rex.m function

Hi everybody, I am running the "setup" step by using a batch (conn_batch function) on rs-fMRI data of one subject. I put all the ROIs that I want CONN extracts the signal in the folder .../rois/ and...

View Article

RE: Explanation of Outputs

HiPravesh, When I check the data variable (timeseries) in the data folder file ROI_SubjectXXX_SessionXXX it has 300 time points as expected (My data is Resting state with 300 time points). But...

View Article


RE: flip left and right hemisphere

We have used the non-rigid reflection along X-axis to flip left and right hemisphere and it looked correct to us, try it out and see how you think it works. Also the reason you are getting 2 windows...

View Article

correlation and 2nd level covariate

Dear Alfonso, dear Forum   1) we computed bivariate correlations and compared Group A vs. Group B. We also corrected for age, setting up 1 -1 0 (with age = 0).   However, how is this practically done...

View Article

slurm submission error

Dear CONN experts, I am running into an error when trying to run jobs on the slurm system using pre-compiled CONN. It seems that the MCRROOT variable is not being added to the CONN-generated shell...

View Article


1st level voxel-to-voxel window won't display

Hi Alfonso, I thought I emailed you my .mat file but I find no record of it in my sent mail. Here it is, attached. Please let me know if you can check it out to see why I'm having the display problem...

View Article


RE: Correlations and group coding

[color=#000000]Dear Lucas,[/color] If you create three covariates: 'Behavioral' (e.g. 1 3 2 5), 'Behavioral_drug' (e.g. 1 3 0 0) and 'Behavioral_placebo' (e.g. 0 0 2 5), then: a) to correlate...

View Article

2nd Level Multi-Session Result Interpretation

[color=#000000]Hi Jeff,[/color] [color=#000000]Regarding the first reviewer question, the approach is not unusual at all, it is in fact rather standard (you may cite Henson and Penny's "ANOVAs and SPM"...

View Article

RE: flip left and right hemisphere

Hi Daniel and all, Thank you for your response. So, what the degree along x-axis it should be to flip left and right ? 180 or 90? Thanks again,

View Article

repeated measure contrast weight

Hi Alfonso, I am using CONN version 16.a doing a repeated measure analysis with two groups: patients and controls. When I was trying to understand how to setup the contrast weight for a paired t-test,...

View Article


RE: slurm submission error

Thanks, Alfonso! Sorry for the late response. Yes, I am using Matlab to run the analyses with the 'nodes use pre-compiled CONN only' option selected. Your suggestion worked! Thanks again, Jake

View Article

sliding window analysis with multiple runs

Hi everyone, I have a study where participants underwent 3 runs of rs-fMRI. I have performed a sliding window analysis by specifying the temporal decomposition parameters in setup.Conditions (window...

View Article


model setup, repeated, different levels

Hi, I have a design where I have two measures per subject. At each measure, I have the variable x that  I am interested in, like this: Subject 1, scan 1, x=23 Subject 1, scan 2, x=14 Subject 2, scan 1,...

View Article

Problems rendering images

Thanks you for the amazing toolbox, it keeps getting better and better!  I have been trying to render the images after second level analysis. When I do and print them to an image file I get black lines...

View Article


Merging projects errors

Greetings everyone,    I've been learning Conn and created a few 'test' projects. Once I began to understand how it worked, I created a "conn_Master" project, that I would merge with a couple of other...

View Article

Error in voxel to voxel analysis

Hi Alfonso, I am using the conn17f standalone version. I have 28 people each with two sessions of resting state functional data. Then I got two conditions 'pre' and 'post'. 1) In the first level...

View Article

RE: Pragmatic graph theory definitions

Hi again Conn experts, I just wanted to follow-up on whether someone could please provide an interpretation of "path length" in terms of the Fisher's r-to-Z transformed correlation values.  Thank you!...

View Article
Browsing all 6859 articles
Browse latest View live