Building an EEG at home

The electrodes are made from coax connectors and ear plugs (sponge). The pin assembly inside the plug is removable and is clamped onto the end of the cable with a screw. The pin is inserted into a hole in the back of the sponge. You can use something like a bamboo skewer to prepare the hole. The plug is then reassembled through the head band (see picture at top of page). The sponge is pre-soaked f