Home-made brain imaging
The OpenEEG project is encouraging independent research into electroencephalograms (EEG), which provide visual representations of the electrical activity in the brain, by providing instructions on how to get EEGs on your PC. The technology has been around for a while, but is not publically available because of standard IEC601, which requires medical devices to undergo specific tests before being made available, tests that are really expensive. Luckily, you can now build your own! All you need is a signal capture card, two electrodes and some software (which is available free on OpenEEG’s site along with comprehensive guides). Cheap capture cards are available through Olimex, electrodes are easy to find, and different software is readily available:
