An Electrocorticographic Brain Interface in an Individual with Tetraplegia

Wang, W and Collinger, JL and Degenhart, AD and Tyler-Kabara, EC and Schwartz, AB and Moran, DW and Weber, DJ and Wodlinger, B and Vinjamuri, RK and Ashmore, RC and Kelly, JW and Boninger, ML (2013) An Electrocorticographic Brain Interface in an Individual with Tetraplegia. PLoS ONE, 8 (2).

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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.

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Creators	Email	Pitt Username	ORCID
Wang, W	wangwei3@pitt.edu	WANGWEI3
Collinger, JL	collinger@pitt.edu	COLLINGR	0000-0002-4517-5395
Degenhart, AD	add19@pitt.edu	ADD19
Tyler-Kabara, EC	tylerk@pitt.edu	TYLERK
Schwartz, AB	abs21@pitt.edu	ABS21
Moran, DW
Weber, DJ	dougweber@pitt.edu	DJW50	0000-0002-9782-3497
Wodlinger, B
Vinjamuri, RK
Ashmore, RC
Kelly, JW
Boninger, ML	boninger@pitt.edu	BONINGER	0000-0001-6966-919X