A gaze independent spelling based on rapid serial visual presentation

An event-related potential (ERP) speller is a brain computer interface (BCI) based on the detection on ERPs that can be used as spelling device for those people deprived of other means of communication. In the present online study we investigated in twelve participants the performance of an ERP spel...

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Bibliographic Details
Published in2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society Vol. 2011; pp. 4560 - 4563
Main Authors Acqualagna, L., Blankertz, B.
Format Conference Proceeding Journal Article
LanguageEnglish
Published United States IEEE 01.01.2011
Subjects
Accuracy
Adult
Calibration
Color
Electrodes
Evoked Potentials
Female
Humans
Image color analysis
Male
Middle Aged
Neuroscience
Semiconductor optical amplifiers
Visual Acuity
Visualization
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Summary:An event-related potential (ERP) speller is a brain computer interface (BCI) based on the detection on ERPs that can be used as spelling device for those people deprived of other means of communication. In the present online study we investigated in twelve participants the performance of an ERP speller based on the rapid serial visual presentation paradigm (RSVP). Three variants of the RSVP speller have been investigated regarding chromaticism and speed of stimulus presentation. All the subjects were able to successfully operate the RSVP speller and high mean symbol selection accuracies were reached in all conditions, (93.6% to 94.8%). Offline analysis revealed a possible mean spelling speed of about 2 symb/min for an optimized number of stimulus sequences. The RSVP speller is intuitive to use and it is gaze independent, which makes it suitable for patients with deterioration of oculomotor control.
ISBN:9781424441211
1424441218
ISSN:1094-687X
1557-170X
1558-4615
DOI:10.1109/IEMBS.2011.6091129