I think the interesting thing about this paper is: 1) it is a closed loop approach, using the Neuropace device to stimulate based on local field potential reco

I think the interesting thing about this paper is: 1) it is a closed loop approach, using the Neuropace device to stimulate based on local field potential recordings from sensing electrodes listening...somewhere (once I bug my librarian to pull the PDF for me I'll look more closely). The biggest effort for depression so far was the Mayberg/Emory group's constant waveform stim in the subcallosal cingulate (medtronic devices which output a set voltage/pulse duration/frequency, which have to be changed manually). W/ mixed results... Neuropace has been out for, what, 10+ years out now, so it's not the latest/greatest tech but maybe good enough for what they are trying to do. 2) Busy year for Eddie Chang's group. They published the brain LFP -> synthetic speech paper a few months ago...