My OpenBCI Brainwave Reader
I'm going to talk some about the OpenBCI EEG I recently bought. First I'll address what an EEG really is for those of you with no preconception. Then I'll compare it to the other options currently on the market, and demonstrate some of OpenBCI's cool projects and features.So an electroencephalograph (EEG) uses electrodes attached to the head to measure electromagnetic pulses generated by firing neurons. The electrodes are only on the scalp so they aren't accurate enough to measure individual neuron activations. Instead, they measure regional neuron spiking, meaning the sum of a collection of neurons firing in unity. This is exciting in its own right. EEGs extract brain data that can explain large scale cognition such as thoughts, conscious states like sleeping versus wakefulness, and even diagnose disorders like epilepsy.
OpenBCI started as a wildly successful Kickstarter (a link to that) and has become a steadily growing startup. Their mission statement is to create an open source EEG. This means that all the designs to the board and to the software are free game for anyone that wants to inspect, modify, or contribute to the project. It's exciting because every single aspect of their product is open source! So I can rewrite the firmware to the board or write my own add ons if I want. Or I can modify their headset design before 3D printing it to better fit my needs. To me, that's a pretty surprising and progressive model for a business to take.
That's what really differs it from other projects in its industry, like Emotiv. Emotiv is releasing closed source EEGs and software. Meaning their EEG and software comes as is and can't be tampered with. I can use their product as is, but any creative ideas I want to implement must remain within the constraints of the parameters they've set. In my eyes that's not ideal for the blossoming field of consumer EEGs.
There are other consumer EEG startups out there, but from what I've seen, they're all highly specialized and closed source. There's Melon and NeuroSky, which are user friendly on the go EEG with functionality to track daily progress. Then there are just tons of EEG ideas for sleep, audio, health and more that are currently in the crowd source funding stage.
It's exciting being part of the OpenBCI movement. The forums and community are just being established. Headset, software and board designs are still being developed and updated in conjunction with consumer use. In fact, right now I'm holding my breath waiting for the new headset design to be finished. When it is, I'll print it on my school's 3D printer and have a much faster set up placing the electrodes on my head. Right now I'm either using a headband and some tape or a generic 3D printed piece to hold them on.

