Nice paper, Alex, and thanks for the Acknowledgment in the paper! Indeed, a good paper for the more advanced user who wants to understand the complexities of pre-whitening. I was already working on putting the method of Ledoit and Wolf into our standard Brainstorm workflow.
For the archives, here’s a bit more detail:
Neuroimage. 2015 Mar;108:328-42. doi: 10.1016/j.neuroimage.2014.12.040. Epub 2014 Dec 23.
[B]Automated model selection in covariance estimation and spatial whitening of MEG and EEG signals.
[/B]Engemann DA, Gramfort A.
- John