Former neuroscientist here. Used to work with intracranial EEG (electrodes directly on the brains of epilepsy patients). This is very cool, and there will defi

Former neuroscientist here. Used to work with intracranial EEG (electrodes directly on the brains of epilepsy patients). This is very cool, and there will definitely be some neat consumer applications. But this is not a "proper" headset, compared to lab equipment. Lab equipment has more electrodes, positioning protocols, and electrode gel. As yoz-y mentioned, that electrode gel can boost signals by orders of magnitude. Good luck getting clean gamma signals from a dry electrode. (Power falls off non-linearly with the frequency, and gamma is the highest frequency we typically capture with EEG.) The most likely scientific application of stuff like this is long-term/ecologically valid recording. E.g., let the user wear this all day with Google Glass. OTOH, even a small number of dry electrodes should suffice to train ML algorithms to turn on your computer with your mind.