[tmd]

I think that there might be huge value in neurobiofeedback but it's a mistake to brand these devices as an aid to what essentially is a religious practice for many people. Just studying the comments in this thread shows that the sole idea of such a device seems blasphemous for some.

Perhaps it would be better to call it a concentration exercise or a brain fitness trainer, especially since it's not even clear that these devices help you with mindfulness (whatever it might be). I tried to find some reviews of Muse done by experienced meditators (I haven't collected the links, sorry) and the results seem mixed. Some claim perfect score on the first sitting, some say they get the same bad results as everyone else starting out with the app. That would suggest that either the device doesn't really do what it claims or that meditation means so many different things to different people that it's not a useful term to use in a scientific context.