I have a potentially obvious question about viewing results from 3dISC.
I ran my subjects (who underwent surface-based analysis) through 3dISC, and the results were in a 1D file format. From what I could find, 1D files are simple text files with numbers. I was wondering if there is any way to view the results/project them on(to) a surface?
I hope I explained that well and I really appreciate any help you can provide.
Can you please share your 3dISC command? Is the output *.1D file output on a standard mesh, say, after running FreeSurfer’s recon-all and @SUMA_Make_Spec_FS?
Thanks for sharing that information. From this line in the *.1D file header you shared:
# ni_dimen = "198812,1,1"
… I assume that that is on a std.141.* mesh, too, so I think you should be able to overlay it in the SUMA GUI. The only thing I don’t see is the hemisphere information there (normally, ‘rh’ or ‘lh’ is kept in a surface file name, for ease of remembering which hemi it is from).
Let’s say it was the left hemisphere data. Then you should be able to open SUMA, such as for a subject with subject ID “SUBJ”:
… and then hit Ctrl+s to open the Surface Controller.
→ click on “Load Dset” in the lower left panel.
→ In the new panel, click in the filename “Filter” for selecting dsets to display, at the top.
→ change the file to show “*1D” dsets, like the one you have output.
→ select that from the Files listed there.
… and how does that seem?
Thank you so much for all your help! It’s working great!
Also, is there a way to view the different contrasts I added in my ISC model? It seems that I am only able to do that on the subjects who underwent volume-based analysis.
Yes, if you have multiple volumes in the dataset you are overlaying (the one in color, that you selected from the Load Dset list), then you should be able to go to the "I"ntensity and "T"hreshold items to the right of the colorbar in the Surface Controller to select different items within that dset to display.
I = intensity (basically, the overlaid/displayed volume; determines what color is shown)
T = threshold (the dset for applying thresholding; determines if a node shows color or not)
One last question, SUMA seems to be reading my “t-stat” as type “numeric” (even though they show up under the Ttest(21) column of the results), which is preventing me from changing (or assigning) p- or q-values (the p and q thresholds below the slider show up as “N/A”).
Is there a way around this?
This is what part of the output looks like (when I open it using a text editor):
The
National Institute of Mental Health (NIMH) is part of the National Institutes of
Health (NIH), a component of the U.S. Department of Health and Human
Services.