Thank you for all your help Anderson!

I would like to obtain z-values / quantify the results produced by randomise. 

More specifically, I'd like to 

Extract Mean z-values for each subject from the individual default-mode network (DMN) z-maps obtained from the dual regression analysis, compare using independent-samples t tests and plot these in the form of boxplots/bar graphs. 

Thus, for these I am trying to find out how to extract these z-values for each IC / RSN / subject from the z-maps of the DR analysis.

Any help regarding this will be greatly appreciated.

Thank you!

Regards,

Shruti

tests

On 24 April 2016 at 12:07, Anderson M. Winkler <[log in to unmask]> wrote:

Hi Shruti,

For (1): These are the results produced by randomise.

For (2) and (3): I don't quite follow what you would like to do. Could give details?

All the best,

Anderson

On 23 April 2016 at 16:16, Shruti Narasimham <[log in to unmask]> wrote:

Hello,

I have run my dual regression and randomise after performing group ICA on a set of data consisting of 3 groups - patients, controls and relatives. I have identified and grouped ICs according to specific RSNs.

I now want to extract mean z-values from each individual spatial map and compare RSNs FC between these groups.

How do I -

1. Identify regions that show significant differences in FC between groups?

2. Extract mean z-value per subject for each RSN?

3. Find additional mean z-zcores of significant voxels per subject for networks that show differences in FC?

Please do let me know how to perform this analysis.

Regards,

Shruti

--

Shruti Narasimham

PhD Candidate

IRC Scholar 2015-2019
Trinity Centre for Bioengineering

Department of Electronic & Electrical Engineering

Trinity College Dublin
Dublin 2- Ireland