Journal ArticleDOI
A novel multiple frequency stimulation method for steady state VEP based brain computer interfaces
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TLDR
This paper discusses a method to increase the number of commands by using a suitable combination of frequencies for stimulation using a limited number of stimulating frequencies in BCI.Abstract:
The objective is to increase the number of selections in brain computer interfaces (BCI) by recording and analyzing the steady state visual evoked potential response to dual stimulation. A BCI translates the VEP signals into user commands. The frequency band from which stimulation frequency can be selected is limited for SSVEP. This paper discusses a method to increase the number of commands by using a suitable combination of frequencies for stimulation. A biopotential amplifier based on the driven right leg circuit (DRL) is used to record 60 s epochs of the SSVEP (O(z)-A(1)) on 15 subjects using simultaneous overlapped stimulation (6, 7, 12, 13 and 14 Hzs and corresponding half frequencies). The power spectrum of each recording is obtained by frequency domain averaging of 400 ms SSVEPs and the spectral peaks were normalized. The spectral peaks of the combination frequencies of stimulation are predominant compared to individual stimulating frequencies. This method increases the number of selections by using a limited number of stimulating frequencies in BCI. For example, six selections are possible by generating only three frequencies.read more
Citations
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Development of a Practical Visual-Evoked Potential-Based Brain-Computer Interface
TL;DR: The presented work shows the results of several studies related to characterizing and optimizing visual stimuli, improving ergonomic design, reducing visual irritation, and implementing a practical VEP-based BCI using an extensible software framework and mobile devices platforms.
Journal ArticleDOI
Independent bilateral-eye stimulation for gaze pattern recognition based on steady-state pupil light reflex
Ariki Sato,Shintaro Nakatani +1 more
TL;DR: In this article , the authors compared multiple conditions for stimulation to increase the information transfer rate (ITR) of the pupil vibration-based interface, which were called monocular single, monocular-superposed, and binocular-independent conditions.
Journal ArticleDOI
A novel multiple time-frequency sequential coding strategy for hybrid brain-computer interface
TL;DR: This study first combined the SSMVEP and multi-OSP in a hybrid paradigm to produce robust and abundant time features for coding BCI to show promise for designing better BCI systems with a novel coding method.
Book ChapterDOI
A Brain Computer Interface Based Visual Keyboard System Using SSVEP and Electrooculogram
TL;DR: More targets were designed using less number of visual stimulus frequencies by integrating EOG with the SSVEP keyboard system and the multi-threshold algorithm and extended multivariate synchronization index (EMSI) method were used for eye gaze detection andSSVEP frequency recognition respectively.
References
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Book
Medical instrumentation: Application and design
TL;DR: Basic Concepts of Medical Instrumentation (W. Olson).
Book
Human Brain Electrophysiology: Evoked Potentials and Evoked Magnetic Fields in Science and Medicine
TL;DR: In this article, the authors propose an approach to explore the potential of PE in the context of neurophysiologie and psychophysics, and propose a set of criteria for evaluating the applicability of PE.
Journal ArticleDOI
Design and implementation of a brain-computer interface with high transfer rates
TL;DR: A brain-computer interface that can help users to input phone numbers based on the steady-state visual evoked potential (SSVEP), which has noninvasive signal recording, little training required for use, and high information transfer rate.
Journal ArticleDOI
Brain-computer interfaces based on the steady-state visual-evoked response
TL;DR: The Air Force Research Laboratory has implemented and evaluated two brain-computer interfaces that translate the steady-state visual evoked response into a control signal for operating a physical device or computer program.