Brain waves as biometrics in relaxed and mentally tasked conditions with eyes closed. (15th October 2012)

• Record Type: Journal Article
• Authors: Nakanishi, Isao; Miyamoto, Chisei; Li, Shigang
• Is Part Of: International journal of biometrics. Volume 4:Number 4(2012)
• Page Start: 357
• Page End: 372
• Publication Date: 2012-10-15
• Subjects: biometrics -- brain wave -- EEG -- relaxed condition -- mentally tasked condition -- eye-closed condition -- continuous authentication -- unconscious biometrics; Biometric identification -- Periodicals; Biometry -- Periodicals; 570.15195
• Languages: English
• ISSNs: 1755-8301

Abstract

In this study, we investigate the practical application of brain wave biometrics to operator authentication of a system where the operator wears a brain wave sensor, and is authenticated while using the system. The verification performance is examined for subjects under the eye-closed and relaxed condition, and the eye-closed and mentally tasked condition. In the latter case, we assume biometric verification of computers users, and we adopt a mental task that we call mental composition. In addition, this application is made more practical by using an electroencephalograph that has a single electrode. Further, we propose simple feature extraction and verification based on spectral information. Our experiments on a set of approximately 20 subjects yield an equal error rate (EER) of approximately 15%.