Dear SPM experts,
I have a problem with the grand average of the averaged ERPs. It seems
that even though all subjects were measured and preprocessed the same
way somehow there are 2 subjects that have 5 instead of 4 conditions
after averaging. Thus I can't use these subjects for the group average.
Before the averaging step everything looks the same as in the "good"
datasets, but afterwards these two subjects have the conditions S1,
S2, S3, S4 and S4. The second S4 condition is totally the same as the
first one (same number of trials and so on).
Do you have any idea why this could occur?
If not is there any possible way to delete this doubled condition manually?
Best wishes,
Nils
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Dipl.-Math. Nils Rosjat
Universität zu Köln
Biozentrum
Zülpicher Straße 47b
50674 Köln
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