Dear all,
I am working on a longitudinal resting fMRI data, where I am looking for the differences in FC after and intervention.
I did created the difference map by subtracting pre from post individual ICA maps and ran the one sample t-test using randomize.
For other contrast I multiplied the individual ICA difference maps with -1 and then performed the one sample t test using randomize.
Now I am curious to know that just flipping the sign of the input How the output comes different while the input remains same with different sign?
Please let me know the process behind this.
Best Regards
Neeraj
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