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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
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
Threaded View
| Title | Author | Date |
|---|---|---|
| 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 | |
| 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 | |
