Optimized beamforming for simultaneous MEG and intracranial local field potential recordings in deep brain stimulation patients

Vladimir Litvak, Alexandre Eusebio, Ashwani Jha, Robert Oostenveld, Gareth R. Barnes, William D. Penny, Ludvic U. Zrinzo, Marwan I. Hariz, Patricia Limousin, Karl J. Friston, Peter Brown