A brain-computer interface that evokes tactile sensations improves robotic arm control.

Autor: Flesher SN; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.; Center for the Neural Basis of Cognition, Pittsburgh, PA, USA., Downey JE; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.; Center for the Neural Basis of Cognition, Pittsburgh, PA, USA.; Department of Organismal Biology, University of Chicago, Chicago, IL, USA., Weiss JM; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA., Hughes CL; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.; Center for the Neural Basis of Cognition, Pittsburgh, PA, USA., Herrera AJ; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.; Center for the Neural Basis of Cognition, Pittsburgh, PA, USA., Tyler-Kabara EC; Department of Neurosurgery, University of Texas at Austin, Austin, TX, USA., Boninger ML; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.; Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA.; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA.; VA Center of Excellence, Department of Veterans Affairs, Pittsburgh, PA, USA., Collinger JL; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA. rag53@pitt.edu collinger@pitt.edu.; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.; Center for the Neural Basis of Cognition, Pittsburgh, PA, USA.; Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA.; VA Center of Excellence, Department of Veterans Affairs, Pittsburgh, PA, USA., Gaunt RA; Rehab Neural Engineering Labs, University of Pittsburgh, Pittsburgh, PA, USA. rag53@pitt.edu collinger@pitt.edu.; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.; Center for the Neural Basis of Cognition, Pittsburgh, PA, USA.; Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA, USA.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2021 May 21; Vol. 372 (6544), pp. 831-836.
DOI: 10.1126/science.abd0380
Abstrakt: Prosthetic arms controlled by a brain-computer interface can enable people with tetraplegia to perform functional movements. However, vision provides limited feedback because information about grasping objects is best relayed through tactile feedback. We supplemented vision with tactile percepts evoked using a bidirectional brain-computer interface that records neural activity from the motor cortex and generates tactile sensations through intracortical microstimulation of the somatosensory cortex. This enabled a person with tetraplegia to substantially improve performance with a robotic limb; trial times on a clinical upper-limb assessment were reduced by half, from a median time of 20.9 to 10.2 seconds. Faster times were primarily due to less time spent attempting to grasp objects, revealing that mimicking known biological control principles results in task performance that is closer to able-bodied human abilities.
(Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.)
Databáze: MEDLINE
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