IBVA Electrode Placement : Forehead and other positions.
The IBVA brainwave sensor band reads the EEG from the frontal lobe of the head (Fp1 and Fp2). This 2 channel, "stereo" headband has output wires for the left and right channels and reads and separates the left and right hemisphere brain data, around Fp1 and Fp2.

The IBVA program can then record and display this information separately. For a two channel look at positions F1..F7 (right) and F2..F8 (left). The 'body ground' is at Fz.
For measuring EEG at other head points, IBVA UK supplies the Pin Input Pak (3 pin adapter) allows you to use any kind of detection device that uses 2mm (.080") connection pins with the IBVA System. Examples of the types of input devices you can use: needle electrodes (ouch!), bar electrodes, disc electrodes, clip electrodes, ring electrodes, pin adapters, extensions, leads, ear clip electrodes, multi position head caps, etc.