Brain waves
How did it all work?
The headset transmitted, via Bluetooth, my alpha (line turn left or right) and beta waves (line length) to a phone app, then onto some laptop software called Wandering Lines, magic happened with the data, and then onto another piece of software called Paint A Cell which controlled the robotic paintbrush, and finally into our eyes!
Alpha Waves
Alpha waves are neural oscillations in the frequency range of 8–12 Hz likely originating from the synchronous and coherent (in phase or constructive) electrical activity of thalamic pacemaker cells in humans. Historically, they are also called "Berger's waves" after Hans Berger, the inventor of EEG.
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Alpha waves are reduced with open eyes, drowsiness and sleep. Historically, they were thought to represent the activity of the visual cortex in an idle state. More recent papers have argued that they inhibit areas of the cortex not in use, or alternatively that they play an active role in network coordination and communication.[4] Occipital alpha waves during periods of eyes closed are the strongest EEG brain signals.
[source: Wikipedia: Alpha wave]
I tried to fall asleep in the final 15 mins, and whilst I did 'fade away' I didn't actually snore and dribble. The Alpha waves dropped massively during this time, fascinating.
Beta Waves
Beta wave, or beta rhythm, is a neural oscillation (brainwave) in the brain with a frequency range of between 12.5 and 30 Hz (12.5 to 30 cycles per second). Beta waves can be split into three sections: Low Beta Waves (12.5–16 Hz, "Beta 1 power"); Beta Waves (16.5–20 Hz, "Beta 2 power"); and High Beta Waves (20.5–28 Hz, "Beta 3 power").[1] Beta states are the states associated with normal waking consciousness.
[source: Wikipedia: Beta wave]
