Complete Locked-in and Locked-in Patients: Command Following Assessment and Communication with Vibro-Tactile P300 and Motor Imagery Brain-Computer Interface Tools

Frontiers in Neuroscience
C GugerVincenzo La Bella

Abstract

Many patients with locked-in syndrome (LIS) or complete locked-in syndrome (CLIS) also need brain-computer interface (BCI) platforms that do not rely on visual stimuli and are easy to use. We investigate command following and communication functions of mindBEAGLE with 9 LIS, 3 CLIS patients and three healthy controls. This tests were done with vibro-tactile stimulation with 2 or 3 stimulators (VT2 and VT3 mode) and with motor imagery (MI) paradigms. In VT2 the stimulators are fixed on the left and right wrist and the participant has the task to count the stimuli on the target hand in order to elicit a P300 response. In VT3 mode an additional stimulator is placed as a distractor on the shoulder and the participant is counting stimuli either on the right or left hand. In motor imagery mode the participant is instructed to imagine left or right hand movement. VT3 and MI also allow the participant to answer yes and no questions. Healthy controls achieved a mean assessment accuracy of 100% in VT2, 93% in VT3, and 73% in MI modes. They were able to communicate with VT3 (86.7%) and MI (83.3%) after 2 training runs. The patients achieved a mean accuracy of 76.6% in VT2, 63.1% in VT3, and 58.2% in MI modes after 1-2 training runs. 9 out...Continue Reading

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Citations

Dec 14, 2018·Journal of Neural Engineering·Reza AbiriXiaopeng Zhao
Jun 5, 2019·Journal of Neural Engineering·M de Neeling, M M Van Hulle
Aug 16, 2018·Frontiers in Neuroscience·Alexander HeilingerChristoph Guger
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Jul 14, 2020·Frontiers in Neuroscience·Mathis FleuryAnatole Lécuyer
Feb 1, 2019·Journal of Neuroengineering and Rehabilitation·Chang-Hee HanChang-Hwan Im
Jun 6, 2018·Frontiers in Neuroscience·Josep Dinarès-FerranJordi Solé-Casals
Mar 21, 2021·Medical & Biological Engineering & Computing·Álvaro Fernández-RodríguezRicardo Ron-Angevin
May 13, 2021·Neuropsychological Rehabilitation·Simritpal Kaur MalhiAndrea Lazosky
Sep 3, 2021·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Ren XuChristoph Guger

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Methods Mentioned

BETA
infrared spectroscopy

Software Mentioned

VT2
mindBEAGLE

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