[FieldTrip] LCMV giving conflicting results vs SAM and DICS

Rojas, Don Don.Rojas at ucdenver.edu
Wed Oct 23 20:31:06 CEST 2013


Haris,

Sorry - In my last post, I mistakenly put DICS and the Fieldtrip implementation of SAM into the same frequency domain category. In Fieldtrip, SAM is a time-domain technique and is not the same as the implementation of SAM that has been used in the published literature for beta ERD. So, are you then wondering why the two time-domain approaches produce differing results? That probably does depend on how the covariance matrix is calculated. Although I still think it is a bad idea to use a time-domain beamformer on motor beta ERD/ERS.

Best,

Don






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