TY - GEN
T1 - Shifting stimuli for brain computer interface based on rapid serial visual presentation
AU - Won, Dong Ok
AU - Hwang, Han Jeong
AU - Müller, Klaus Robert
AU - Lee, Seong Whan
N1 - Funding Information:
This work was supported by ICT R&D program of MSIP/IITP. [R0126-15-1107, Development of Intelligent Pattern Recognition Softwares for Ambulatory Brain-Computer Interface] .
PY - 2017/2/16
Y1 - 2017/2/16
N2 - Most of event-related potential (ERP)-based braincomputer interface (BCI) speilers are limited practical value for paralyzed patients with severe oculomotor impairments. Recently, a gaze-independent Bel speiler was proposed that uses rapid serial visual presentation (RSVP), but it is difficult to recognize targets because of the rapid presentation of characters. We developed two ERP-based Bel speilers using RSVP with motion, and non-motion stimulation. We evaluated the effect of the two different stimulus conditions on the performance of the speiler system with eight participants. The stimulation methods that employ motion stimulation inside the foveal vision demonstrate not only gaze-independence but also higher performance than method that uses non-motion stimulation (88.9% for non-motion RSVP, 90.3% for motion RSVP). The performance of the different stimulation methods was susceptible to ERP latency and amplitudes. As a result, motion-Type RSVP stimulation condition (i.e., motion RSVP) had shorter latency and higher amplitudes than the non-motion RSVP stimulation condition. lt is expected that the proposed motion RSVP stimulation method could be used for developing a gaze independent Bel system with high performance.
AB - Most of event-related potential (ERP)-based braincomputer interface (BCI) speilers are limited practical value for paralyzed patients with severe oculomotor impairments. Recently, a gaze-independent Bel speiler was proposed that uses rapid serial visual presentation (RSVP), but it is difficult to recognize targets because of the rapid presentation of characters. We developed two ERP-based Bel speilers using RSVP with motion, and non-motion stimulation. We evaluated the effect of the two different stimulus conditions on the performance of the speiler system with eight participants. The stimulation methods that employ motion stimulation inside the foveal vision demonstrate not only gaze-independence but also higher performance than method that uses non-motion stimulation (88.9% for non-motion RSVP, 90.3% for motion RSVP). The performance of the different stimulation methods was susceptible to ERP latency and amplitudes. As a result, motion-Type RSVP stimulation condition (i.e., motion RSVP) had shorter latency and higher amplitudes than the non-motion RSVP stimulation condition. lt is expected that the proposed motion RSVP stimulation method could be used for developing a gaze independent Bel system with high performance.
KW - Brain computer interface
KW - Gaze-independent
KW - Rapid serial visual presentation
KW - Spelter
UR - http://www.scopus.com/inward/record.url?scp=85016003627&partnerID=8YFLogxK
U2 - 10.1109/IWW-BCI.2017.7858152
DO - 10.1109/IWW-BCI.2017.7858152
M3 - Conference contribution
AN - SCOPUS:85016003627
T3 - 5th International Winter Conference on Brain-Computer Interface, BCI 2017
SP - 40
EP - 41
BT - 5th International Winter Conference on Brain-Computer Interface, BCI 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th International Winter Conference on Brain-Computer Interface, BCI 2017
Y2 - 9 January 2017 through 11 January 2017
ER -