Dear SPM experts,
I would like to ask your advice on the statistical analysis of EEG
source reconstructed images, more specifically on the p-value to be
used to decide whether a difference is significant or not.
We used the normal source imaging approach in 10 different time
windows. The reconstructed activity was statistically analyzed per
window with ANOVA to find possible differences between different
groups of patients.
Do you have guidelines to choose an appropriate p-value threshold to
correct for multiple comparisons? Should I only correct for the number
of ANOVA?s that we did? Or should I correct for the number of EEG
dipoles, like what is done in fMRI research for the number of voxels?
Thanks a lot for your answer.
Kind regards,
Sarah Vanhoutte
--
Doctoral researcher
Speech-language therapist
Ghent University (Belgium)
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