An electroencephalograph (EEG) point-of-sale (POS) system and method comprises; an EEG device that can detect a plurality of electrical signals representing brain waves; a database of brain wave profiles representing items; and a live signal analyser that compares the signals detected by the EEG device with the stored profiles to determine a match. The brain waves detected by the EEG device may be generated when a user is exposed to an item or product to be identified, and that item is identified as the item with the matching profile in the database. The live signal analyser may log and tally identified items for a transaction, and may provide item identification and price data to a POS terminal. Also claimed is a training method which comprises; receiving EEG training data from an EEG device that is generated when a user is exposed to a training item; generating an item brain wave profile which characterises the EEG training data along with data identifying the training item; and storing the item brain wave profile in a database.
Product identification using electroencephalography