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Decoding covert somatosensory attention by a BCI system calibrated with tactile sensation

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dc.contributor.authorYao, Lin
dc.contributor.authorSheng, Xinjun
dc.contributor.authorMrachacz-Kersting, Natalie
dc.contributor.authorZhu, Xiangyang
dc.contributor.authorFarina, Dario
dc.contributor.authorJiang, Ning
dc.date.accessioned2017-10-12T20:23:52Z
dc.date.available2017-10-12T20:23:52Z
dc.date.issued2017-10-12
dc.description© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.en
dc.description.abstractObjective: We propose a novel calibration strategy to facilitate the decoding of covert somatosensory attention by exploring the oscillatory dynamics induced by tactile sensation. Methods: It was hypothesized that the similarity of the oscillatory pattern between stimulation sensation (SS, real sensation) and somatosensory attentional orientation (SAO) provides a way to decode covert somatic attention. Subjects were instructed to sense the tactile stimulation, which was applied to the left (SS-L) or the right (SS-R) wrist. The BCI system was calibrated with the sensation data and then applied for online SAO decoding. Results: Both SS and SAO showed oscillatory activation concentrated on the contralateral somatosensory hemisphere. Offline analysis showed that the proposed calibration method led to greater accuracy than the traditional calibration method based on SAO only. This is confirmed by online experiments, where the online accuracy on 15 subjects was 78.8±13.1%, with 12 subjects >70% and 4 subject >90%. Conclusion: By integrating the stimulus-induced oscillatory dynamics from sensory cortex, covert somatosensory attention can be reliably decoded by a BCI system calibrated with tactile sensation. Significance: Indeed, real tactile sensation is more consistent during calibration than SAO. This brain-computer interfacing approach may find application for stroke and completely locked-in patients with preserved somatic sensation.en
dc.description.sponsorshipUniversity Starter Grant of the University of Waterloo (No. 203859) National Natural Science Foundation of China (Grant No. 51620105002)en
dc.identifier.urihttps://doi.org/10.1109/TBME.2017.2762461
dc.identifier.urihttp://hdl.handle.net/10012/12539
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineersen
dc.subjectCovert somatic attentionen
dc.subjectSomatosensory attentionen
dc.subjectBrain-computer interfacingen
dc.subjectSimulationen
dc.subjectSensationen
dc.titleDecoding covert somatosensory attention by a BCI system calibrated with tactile sensationen
dc.typeArticleen
dcterms.bibliographicCitationYao, L., Sheng, X., Mrachacz-Kersting, N., Zhu, X., Farina, D., & Jiang, N. (2017). Decoding covert somatosensory attention by a BCI system calibrated with tactile sensation. IEEE Transactions on Biomedical Engineering, 1–1. https://doi.org/10.1109/TBME.2017.2762461en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Systems Design Engineeringen
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.typeOfResourceTexten

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