EEG hair band

An EEG hair band to record multiple EEG signals comprising:

• a. a head band having a generally arcuate configuration with two ends and one or more EEG teeth that circumnavigate the head band, wherein
• i. each and all teeth are perpendicular to the head band,
• ii. each EEG tooth comprises a tip having an electrode, and further is adapted to be of sufficient length and design to enable the electrode positioned on the tip of each EEG tooth to reach the scalp of a wearer when worn by a wearer,
• iii. the electrodes are adapted to measure electroencephalograph signals from the wearer,
• b. wherein the head band comprises at least one reference electrode and at least two additional electrodes, wherein each additional electrode creates an independent electroencephalograph channel referentially against the reference electrode.