[1] As of 2012, EEG headsets ranged from simple dry single-contact devices to more elaborate 16-contact, wetted contacts, and output devices included toys like a tube containing a fan that blows harder or softer depending on how hard the user concentrates which in turn moved a ping-pong ball, video games, or a video display of the EEG signal.
[3] In 2007, the Canadian scientist Ariel Garten formed InteraXon with Trevor Coleman and Chris Aimone to commercialize her and her mentor Steve Mann's research on brain–computer interfaces, with an initial focus on output devices that could do practical tasks like turn off lights, control audio devices, or move objects.
[3] In the 2010s, French scientists Yohan Attal and Thibaud Dumas founded myBrain to commercialize their research, and worked with the Brain and Spine Institute (ICM) in Paris to create an EEG headset called melomind with four electrodes, with an app for stress management.
[3] Around the same time, OpenBCI was founded by Joel Murphy to create an open source set of devices, processors, and software aimed at biohackers and researchers that incorporates other sensors along with EEG electrodes.
Founded by cognitive neuroscientist Sid Kouider, the company offers their product as a dev kit to make neurotechnology accessible to a wider audience of developers.