An Electrocorticographic Brain Interface in an Individual with Tetraplegia
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Author/Creator ORCID
Date
2013-02-06
Type of Work
Department
Program
Citation of Original Publication
Wang W, Collinger JL, Degenhart AD, Tyler-Kabara EC, Schwartz AB, et al. (2013) An Electrocorticographic Brain Interface in an Individual with Tetraplegia. PLoS ONE 8(2): e55344. doi:10.1371/journal.pone.0055344
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CC0 1.0 Universal
CC0 1.0 Universal
Subjects
Abstract
Brain-computer interface (BCI) technology aims to help individuals with disability to control assistive devices and reanimate
paralyzed limbs. Our study investigated the feasibility of an electrocorticography (ECoG)-based BCI system in an individual
with tetraplegia caused by C4 level spinal cord injury. ECoG signals were recorded with a high-density 32-electrode grid
over the hand and arm area of the left sensorimotor cortex. The participant was able to voluntarily activate his sensorimotor
cortex using attempted movements, with distinct cortical activity patterns for different segments of the upper limb. Using
only brain activity, the participant achieved robust control of 3D cursor movement. The ECoG grid was explanted 28 days
post-implantation with no adverse effect. This study demonstrates that ECoG signals recorded from the sensorimotor cortex
can be used for real-time device control in paralyzed individuals