Exploiting sparse representation in the P300 speller paradigm
نویسندگان
چکیده
منابع مشابه
Possible Sources of Perceptual Errors in P300-based Speller Paradigm
INTRODUCTION Our ability of detecting or identifying stimuli is limited and we are susceptible to different kinds of illusions or ‘mistakes’. Perceptual limits are often investigated by using rapid serial visual presentation (RSVP) experiments. In a typical RSVP experiment stimuli are sequentially presented at a rate of 6 to 20 items per second and observers are asked to detect or identify a ta...
متن کاملExploiting the P300 paradigm for cognitive biometrics
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 enviro...
متن کاملاستخراج مولفه p300 سیگنالهای eeg با روش موجک در سیستم bci، مبتنی بر p300 speller paradigm
چکیده ندارد.
15 صفحه اولIs the P300 Speller Independent?
The P300 speller is being considered as an independent brain–computer interface. That means it measures the user’s intent, and does not require the user to move any muscles. In particular it should not require eye fixation of the desired character. However, it has been shown that posterior electrodes provide significant discriminative information, which is likely related to visual processing. T...
متن کاملEnsemble SWLDA Classifiers for the P300 Speller
The P300 Speller has proven to be an effective paradigm for braincomputer interface (BCI) communication. Using this paradigm, studies have shown that a simple linear classifier can perform as well as more complex nonlinear classifiers. Several studies have examined methods such as Fisher’s Linear Discriminant (FLD), Stepwise Linear Discriminant Analysis (SWLDA), and Support Vector Machines (SVM...
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ژورنال
عنوان ژورنال: Tsinghua Science and Technology
سال: 2021
ISSN: 1007-0214
DOI: 10.26599/tst.2019.9010079