help > RE: Graph Theory correlation measures
Aug 27, 2015  08:08 PM | Ben Crittenden - Oxford
RE: Graph Theory correlation measures
Hello,

I thought I'd add to this thread as my question is quite similar...

I'd like to extract the ROI-ROI correlation values from a second level analysis, that correspond to what is used to determine the threshold in the graph-theory window of the gui.

Currently I can get the correlation values for a particular ROI by doing:

.h i.e. the effect size or i.e. averaging over the single-subject fisher Z values, which I believe should give the same result.

I thought that this would be the value that is used to determine whether an edge passes the threshold set by the correlation coefficient value in the graph theory window, but it doesn't appear to:

e.g. I have an edge between IPS and PFC with a correlation/effect size of 0.59, yet if I set the threshold up to 0.62 I still see the edge appear in the figure.

Is it possible to get the ROI-ROI correlation values that are compared against the correlation coefficient threshold that is set by the user in the graph theory window of the GUI? Or how is this computed?

I think the toolbox is great - many thanks!

Ben

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Aiden Arnold Aug 1, 2012
Shukti Ramkiran May 3, 2016
Alfonso Nieto-Castanon Aug 2, 2012
Anna Zilverstand Sep 17, 2015
Alfonso Nieto-Castanon Sep 17, 2015
Anna Zilverstand Sep 17, 2015
Alfonso Nieto-Castanon Sep 17, 2015
Anna Zilverstand Sep 21, 2015
Alfonso Nieto-Castanon Sep 25, 2015
Anna Zilverstand Sep 25, 2015
Alfonso Nieto-Castanon Sep 25, 2015
Anna Zilverstand Sep 28, 2015
Alfonso Nieto-Castanon Sep 28, 2015
Anna Zilverstand Sep 28, 2015
Alfonso Nieto-Castanon Sep 29, 2015
Anna Zilverstand Sep 29, 2015
Anna Zilverstand Sep 25, 2015
Anna Zilverstand Sep 21, 2015
Anna Zilverstand Sep 17, 2015
RE: Graph Theory correlation measures
Ben Crittenden Aug 27, 2015
Alfonso Nieto-Castanon Aug 28, 2015
Ben Crittenden Sep 18, 2015
Ben Crittenden Sep 1, 2015
Aiden Arnold Aug 3, 2012
Alfonso Nieto-Castanon Aug 13, 2012