Title :
A novel brain-computer interface based on the rapid serial visual presentation paradigm
Author :
Acqualagna, Laura ; Treder, Matthias Sebastian ; Schreuder, Martijn ; Blankertz, Benjamin
Author_Institution :
Univ. Degli Studi di Genova, Genova, Italy
fDate :
Aug. 31 2010-Sept. 4 2010
Abstract :
Most present-day visual brain computer interfaces (BCIs) suffer from the fact that they rely on eye movements, are slow-paced, or feature a small vocabulary. As a potential remedy, we explored a novel BCI paradigm consisting of a central rapid serial visual presentation (RSVP) of the stimuli. It has a large vocabulary and realizes a BCI system based on covert non-spatial selective visual attention. In an offline study, eight participants were presented sequences of rapid bursts of symbols. Two different speeds and two different color conditions were investigated. Robust early visual and P300 components were elicited time-locked to the presentation of the target. Offline classification revealed a mean accuracy of up to 90% for selecting the correct symbol out of 30 possibilities. The results suggest that RSVP-BCI is a promising new paradigm, also for patients with oculomotor impairments.
Keywords :
brain-computer interfaces; medical signal processing; neurophysiology; visual evoked potentials; RSVP-BCI; brain-computer interface; central RSVP paradigm; covert nonspatial selective visual attention; oculomotor impairments; rapid serial visual presentation; rapid symbol bursts; visual BCI; Accuracy; Electric potential; Electrodes; Electroencephalography; Image color analysis; Visualization; Vocabulary; Adult; Biomedical Engineering; Brain; Computers; Electroencephalography; Event-Related Potentials, P300; Evoked Potentials; Female; Humans; Male; Reproducibility of Results; Signal Processing, Computer-Assisted; Software; Time Factors; User-Computer Interface;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE
Conference_Location :
Buenos Aires
Print_ISBN :
978-1-4244-4123-5
DOI :
10.1109/IEMBS.2010.5626548