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I built something like this a while back - it was a project in an electronics magazine (I might be able to dig out the circuit diagram if anyone's interested). It had an oscillator that flashed LED lights mounted on a pair of glasses, & also an audio output for headphones. It produced a slightly different tone in each ear, the idea being that your brain tends to oscillate at the beat tone (the difference between them) - which was also the freq of the flashing lights. Yeah, it had some interesting effects, especiallly when you hit certain frequencies. Don't do this if you're epileptic tho'.
I had another circuit - I never built this one, but I find it more interesting - that would measure the dominant freq of your brain & give an audiable feedback. The idea being that you could learn to control it & put yourself into whatever state - beta, gamma etc. |
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