Simultaneous decoding of velocity and speed during executed and observed tracking movements: an MEG study

Reinmar Kobler, Masayuki Hirata, Hiroaki Hashimoto, Ryosuke Dowaki, Andreea Ioana Sburlea, Gernot Müller-Putz

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Brain signals carry rich information about voluntary upper-limb movements. Accessing this information to control an end-effector (upper-limb, robotic arm, cursor) has been a central topic in brain-computer interface (BCI) research. To date, non-invasive BCIs based on kinematics decoding have focused on extracting partial information (i.e, single or highly correlated kinematic parameters). In this work, we show that low-frequency magnetoencephalographic (MEG) signals simultaneously carry information about multiple kinematic parameters. Using linear models, we decoded cursor velocity and speed during executed and observed tracking movements with moderate (0.2 to 0.4) correlation coefficients (CCs). Comparing the CCs between executed and observed tracking movements, revealed that the MEG signals carried more information (0.1 higher CCs) about velocity and speed during the executed tracking movements. The higher correlations were mainly explained by increased predictive activity in primary sensorimotor areas. We could, therefore, show that non-invasive BCIs have the potential to extract multiple kinematic signals from brain activity in sensorimotor areas.
Original languageEnglish
Title of host publicationProceedings of the 8th Graz Brain-Computer Interface Conference 2019
Subtitle of host publicationBridging Science and Application
EditorsGernot Müller-Putz, Jonas Ditz, Selina Wriessnegger
Place of PublicationGraz
PublisherVerlag der Technischen Universität Graz
Pages100-105
Number of pages6
ISBN (Print)978-3-85125-682-6
DOIs
Publication statusPublished - 18 Sep 2019
Event8th Graz Brain-Computer Interface Conference 2019: Bridging Science and Application - Petersgasse 16, Graz, Austria
Duration: 16 Sep 201920 Sep 2019
Conference number: 8
https://www.tugraz.at/institutes/ine/graz-bci-conferences/8th-graz-bci-conference-2019/

Conference

Conference8th Graz Brain-Computer Interface Conference 2019
Abbreviated titleGBCIC 2019
CountryAustria
CityGraz
Period16/09/1920/09/19
Internet address

Fingerprint

Biomechanical Phenomena
Decoding
Kinematics
Upper Extremity
Brain
Brain-Computer Interfaces
Robotic arms
Brain computer interface
Robotics
End effectors
Linear Models
Research
Sensorimotor Cortex

Keywords

  • magnetoencephalography
  • kinematics
  • velocity
  • speed
  • brain-computer interface
  • motor cortex
  • continuous movement
  • parietal cortex

ASJC Scopus subject areas

  • Signal Processing
  • Neuroscience (miscellaneous)
  • Sensory Systems
  • Biomedical Engineering

Fields of Expertise

  • Human- & Biotechnology

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

Cite this

Kobler, R., Hirata, M., Hashimoto, H., Dowaki, R., Sburlea, A. I., & Müller-Putz, G. (2019). Simultaneous decoding of velocity and speed during executed and observed tracking movements: an MEG study. In G. Müller-Putz, J. Ditz, & S. Wriessnegger (Eds.), Proceedings of the 8th Graz Brain-Computer Interface Conference 2019: Bridging Science and Application (pp. 100-105). Graz: Verlag der Technischen Universität Graz. https://doi.org/10.3217/978-3-85125-682-6-19

Simultaneous decoding of velocity and speed during executed and observed tracking movements: an MEG study. / Kobler, Reinmar; Hirata, Masayuki; Hashimoto, Hiroaki; Dowaki, Ryosuke; Sburlea, Andreea Ioana; Müller-Putz, Gernot.

Proceedings of the 8th Graz Brain-Computer Interface Conference 2019: Bridging Science and Application. ed. / Gernot Müller-Putz; Jonas Ditz; Selina Wriessnegger. Graz : Verlag der Technischen Universität Graz, 2019. p. 100-105.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Kobler, R, Hirata, M, Hashimoto, H, Dowaki, R, Sburlea, AI & Müller-Putz, G 2019, Simultaneous decoding of velocity and speed during executed and observed tracking movements: an MEG study. in G Müller-Putz, J Ditz & S Wriessnegger (eds), Proceedings of the 8th Graz Brain-Computer Interface Conference 2019: Bridging Science and Application. Verlag der Technischen Universität Graz, Graz, pp. 100-105, 8th Graz Brain-Computer Interface Conference 2019, Graz, Austria, 16/09/19. https://doi.org/10.3217/978-3-85125-682-6-19
Kobler R, Hirata M, Hashimoto H, Dowaki R, Sburlea AI, Müller-Putz G. Simultaneous decoding of velocity and speed during executed and observed tracking movements: an MEG study. In Müller-Putz G, Ditz J, Wriessnegger S, editors, Proceedings of the 8th Graz Brain-Computer Interface Conference 2019: Bridging Science and Application. Graz: Verlag der Technischen Universität Graz. 2019. p. 100-105 https://doi.org/10.3217/978-3-85125-682-6-19
Kobler, Reinmar ; Hirata, Masayuki ; Hashimoto, Hiroaki ; Dowaki, Ryosuke ; Sburlea, Andreea Ioana ; Müller-Putz, Gernot. / Simultaneous decoding of velocity and speed during executed and observed tracking movements: an MEG study. Proceedings of the 8th Graz Brain-Computer Interface Conference 2019: Bridging Science and Application. editor / Gernot Müller-Putz ; Jonas Ditz ; Selina Wriessnegger. Graz : Verlag der Technischen Universität Graz, 2019. pp. 100-105
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