J
John E. Downey
Researcher at University of Chicago
Publications - 30
Citations - 3286
John E. Downey is an academic researcher from University of Chicago. The author has contributed to research in topics: Somatosensory system & Microstimulation. The author has an hindex of 15, co-authored 25 publications receiving 2533 citations. Previous affiliations of John E. Downey include Johns Hopkins University & University of Pittsburgh.
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Journal ArticleDOI
High-performance neuroprosthetic control by an individual with tetraplegia
Jennifer L. Collinger,Brian Wodlinger,John E. Downey,Wei Wang,Elizabeth C. Tyler-Kabara,Douglas J. Weber,Angus J. C. McMorland,Meel Velliste,Michael L. Boninger,Andrew B. Schwartz +9 more
TL;DR: With continued development of neuroprosthetic limbs, individuals with long-term paralysis could recover the natural and intuitive command signals for hand placement, orientation, and reaching, allowing them to perform activities of daily living.
Journal ArticleDOI
Intracortical microstimulation of human somatosensory cortex
Sharlene N Flesher,Jennifer L. Collinger,Stephen T. Foldes,Stephen T. Foldes,Jeffrey M Weiss,John E. Downey,Elizabeth C. Tyler-Kabara,Sliman J. Bensmaia,Andrew B. Schwartz,Michael L. Boninger,Robert A. Gaunt +10 more
TL;DR: It is shown that microstimulation within the hand area of the somatosensory cortex of a person with long-term spinal cord injury evokes tactile sensations perceived as originating from locations on the hand and that cortical stimulation sites are organized according to expected somatotopic principles.
Journal ArticleDOI
Ten-dimensional anthropomorphic arm control in a human brain?machine interface: difficulties, solutions, and limitations
Brian Wodlinger,John E. Downey,Elizabeth C. Tyler-Kabara,Andrew B. Schwartz,Michael L. Boninger,Jennifer L. Collinger +5 more
TL;DR: The results show that individual motor cortical neurons encode many parameters of movement, that object interaction is an important factor when extracting these signals, and that high-dimensional operation of prosthetic devices can be achieved with simple decoding algorithms.
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A brain-computer interface that evokes tactile sensations improves robotic arm control.
Sharlene N Flesher,John E. Downey,Jeffrey M Weiss,Christopher L Hughes,Angelica J. Herrera,Elizabeth C. Tyler-Kabara,Michael L. Boninger,Jennifer L. Collinger,Robert A. Gaunt +8 more
TL;DR: In this article, a bidirectional brain-computer interface that records neural activity from the motor cortex and generates tactile sensations through intracortical microstimulation of the somatosensory cortex was used to augment vision with tactile percepts.
Journal ArticleDOI
Autonomy infused teleoperation with application to brain computer interface controlled manipulation
Katharina Muelling,Arun Venkatraman,Jean-Sebastien Valois,John E. Downey,Jeffrey M Weiss,Shervin Javdani,Martial Hebert,Andrew B. Schwartz,Jennifer L. Collinger,J. Andrew Bagnell +9 more
TL;DR: The results indicate that shared assistance mitigates perceived user difficulty in using a seven-degree of freedom robotic arm as a prosthetic and enables successful performance on previously infeasible tasks.