نتایج جستجو برای: brain computer interfaces bci

تعداد نتایج: 1077832  

2013
Arnau Espinosa Guenter Edlinger Christoph Guger

Most brain-computer interfaces (BCI) are based on one of three types of electroencephalogram (EEG) signals: P300s, steady-state visually evoked potentials (SSVEP), and event-related desynchronization (ERD). EEG is typically recorded non-invasively using active or passive electrodes mounted on the human scalp. The common setup requires conductive electrode gel to get the best entrance impedance ...

2008
Peter Desain Jason Farquhar Pim Haselager Christian Hesse Rebecca Schaefer

The state of the art of Brain Computer Interfacing, though promising, is still far from what one would need for fast and reliable control of games and interfaces. A mature non-invasive systems is e.g. the discrete P300 visual speller, in which alternating rows and columns of a letter matrix flash and gaze and attention is directed by the user to a specific letter (Sellers & Donchin, 2006). The ...

2016
E. C. Leuthardt G. Schalk J. R. Wolpaw J. G. Ojemann

Brain-Computer Interfaces (BCIs) ensure non-muscular communication between a user and external device by using brain activity. Currently, BCIs were applied in the medical field to increase quality of life of patients suffering from neuromuscular disorders. Most BCI systems use scalp recorded electroencephalographic activity, while Electrocorticography (ECoG) is a minimally-invasive alternative ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Xiaogang Chen Yijun Wang Masaki Nakanishi Xiaorong Gao Tzyy-Ping Jung Shangkai Gao

The past 20 years have witnessed unprecedented progress in brain-computer interfaces (BCIs). However, low communication rates remain key obstacles to BCI-based communication in humans. This study presents an electroencephalogram-based BCI speller that can achieve information transfer rates (ITRs) up to 5.32 bits per second, the highest ITRs reported in BCI spellers using either noninvasive or i...

Journal: :Trends in neurosciences 2011
Andrea M Green John F Kalaska

Brain-computer interfaces (BCIs) extract signals from neural activity to control remote devices ranging from computer cursors to limb-like robots. They show great potential to help patients with severe motor deficits perform everyday tasks without the constant assistance of caregivers. Understanding the neural mechanisms by which subjects use BCI systems could lead to improved designs and provi...

Journal: :PsychNology Journal 2003
Fabrizio Beverina Giorgio Palmas Stefano Silvoni Francesco Piccione Silvio Giove

Brain Computer Interfaces (BCI) represent a new communication option for those suffering from neuromuscular impairment that prevents them from using conventional augmented communication methods. This new approach has been developing quickly during the last few years, thanks to the increasing of computational power and the new algorithms for signal processing (Independent Component Analysis, Wav...

Journal: :Journal of motor behavior 2010
Jonathan R Wolpaw

Brain-computer interfaces (BCIs) could provide important new communication and control options for people with severe motor disabilities. Most BCI research to date has been based on 4 assumptions that: (a) intended actions are fully represented in the cerebral cortex; (b) neuronal action potentials can provide the best picture of an intended action; (c) the best BCI is one that records action p...

2009
C. Mühl M. E. Thurlings

Brain-Computer Interfaces (BCIs) allow users to control applications by brain activity. Among their possible applications for non-disabled people, games are promising candidates. BCIs can enrich game play by the mental and affective state information they contain. During the eNTERFACE’09 workshop we developed the Bacteria Hunt game which can be played by keyboard and BCI, using SSVEP and relati...

2013
Takayuki Hamano Tomasz M. Rutkowski Hiroko Terasawa Kazuo Okanoya Kiyoshi Furukawa

Electroencephalography (EEG) has been used to generate music for over 40 years, but the most recent developments in brain–computer interfaces (BCI) allow greater control and more flexible expression to use new musical instruments via EEG. We developed a real-time musical performance system using BCI technology and sonification techniques to generate chords with organically fluctuating timbre. W...

2005
Jianzhao Qin Yuanqing Li Andrzej Cichocki

In recent years, brain-computer interface (BCI) technology has emerged very rapidly. Brain-computer interfaces (BCIs) bring us a new communication interface technology which can translate brain activities into control signals of devices like computers, robots. The preprocessing of electroencephalographic (EEG) signal and translation algorithms play an important role in EEG-based BCIs. In this s...

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