[Mne_analysis] noise covariance matrix
Laura Munkki
lauramunkki at gmail.com
Wed Mar 25 16:35:45 EDT 2020
External Email - Use Caution
Hi,
I am analyzing auditory evoked responses (N100).
I calculated NCM for pre-stimulus activity (500 ms long epochs).
For the ERPs I used filter 0.5-20, and I applied the same for the NCM
epochs. The dSPM was totally messy. Then I tried to calculate the NCM
without filters, and, surprisingly, the N100 was localized perfectly to the
auditory cortex.
Is it necessary to use the same filter before the NCM calculations?
Thank you,
Laura
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20200325/7eae41e7/attachment.html
More information about the Mne_analysis
mailing list