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Hi,

I'm trying to extract cortical thickness values from a significant cluster from between-group F- and t-contrasts in CAT12 (with the latest version of SPM12). I'd like use mean cortical thickness within that cluster from each subject to perform some additional analyses. I tried following the steps used in the previous thread linked below, but got an error message when loading in the spmF and spmT contrasts.

https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind1802&L=spm&F=&S=&P=378788

My error when using "Display Surface Results" was: 

Index in position 1 exceeds array bounds (must not exceed 64984).
Error in cat_surf_results (line 395)
                                H.S{1}.Y = Y(1:163842, :);
Error in cat_surf_results>select_data (line 1633)
cat_surf_results('disp', H.S{1}.name, H.S{2}.name);
 
Error while evaluating DestroyedObject Callback.

I checked in debug mode and noticed that Y is a 64984x1 double at line 395 of cat_surf_results, so I'm not sure why I'm getting this error. Hopefully Christian or someone else has some insight into this!

Thanks in advance!
Cameron