Exploiting the P300 paradigm for cognitive biometrics. (13th April 2012)

• Record Type: Journal Article
• Authors: Gupta, Cota Navin; Palaniappan, Ramaswamy; Paramesran, Raveendran
• Is Part Of: International journal of cognitive biometrics. Volume 1:Number 1(2012)
• Page Start: 26
• Page End: 38
• Publication Date: 2012-04-13
• Subjects: authentication system -- bit rate -- brain-computer interface -- cognitive biometrics -- P300 potential -- RSVP -- rapid serial visual paradigm -- spatially varying paradigm; Biometric identification -- Periodicals; Cognitive science -- Periodicals; Biomathematics -- Periodicals; 570.15195
• Languages: English
• ISSNs: 2042-6461

Abstract

Automatic identification of a person's individuality is an important issue today. Brain Computer Interfaces (BCI) which uses EEG as a modality is a promising area for cognitive biometrics. A BCI system could be used to recognise a sequence (say letters, colours or images) by the user. This sequence could form a 'BrainWord', which could be used for authentication in a multimodal environment with other technologies for high security applications. In this work, we studied several variations of the well-known P300 BCI paradigm. The influence of irrelevant stimuli during a task was studied by considering the popular Rapid Serial Visual Paradigm (RSVP) . The variation in spatial locations of the presentation stimuli during a task was studied, by designing a Spatially Varying Paradigm . Comparison of classification accuracies and bit rates for eight participants from a BCI perspective, highlights that RSVP paradigm could be exploited effectively for biometrics.