Amy O, PhD  👩‍🔬 🐵

Yeah, I guess my impression was that the best "in the field" work so far doesn't have cortical read outs and it seems like that might still be far away? Though actually I'm not sure what is actually in the field

I think it's a fair to say the best control for motor prosthetics is from peripheral interfaces so far. The therapeutic goal is the same but they're fundamentally different systems. Brain interfaces have wider targets for treatment, extend to these bigger DARPA-esque goals.

For higher-D control (esp. in people), I'm not familiar with peripheral work that can match @jenpgh & colleagues' (cortical) work (and recent work from @sergeydoestweet et al.). I might be missing great stuff! What are you thinking of? I'm not on top of peripheral literature.

Citation? And how are these studies compared? Is there any sort of standard?

It is very difficult to compare BCI studies! In @jenpgh et al.'s work, a great functional measure they used was performance in a common clinical assessment, the (adapted) Action Research Arm Test (ARAT). https://www.ncbi.nlm.nih.gov/pubmed/23253623 

[ Side note: they also were up front about the variability in performance they saw from day to day, which is phenomenal. ]