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Neuromotor prosthesis development




Article describes a neuromotor prosthesis (NMP), in development at Brown University, that records human brain signals, decodes them, and transforms them into movement commands. An NMP is described as a system consisting of a neural interface, a decoding system, and a user interface, also called an effector; a closed-loop system would be completed by a feedback signal from the effector to the brain. The interface is based on neural spiking, a source of information-rich, rapid, complex control signals from the nervous system. The NMP described, named BrainGate, consists of a match-head sized platform with 100 thread-thin electrodes implanted just into the surface of the motor cortex where commands to move the hand emanate. Neural signals are decoded by a rack of computers that displays the resultant output as the motion of a cursor on a computer monitor. While computer cursor motion represents a form of virtual device control, this same command signal could be routed to a device to command motion of paralyzed muscles or the actions of prosthetic limbs. The researchers’ overall goal is the development of a fully implantable, wireless multi-neuron sensor for broad research, neural prosthetic, and human neurodiagnostic applications.

Author(s): Donoghue, J.P. and Hochberg, L.R. and Nurmikko, A.V. and Black, M.J. and Simeral, J.D. and Friehs, G.
Journal: Medicine & Health Rhode Island
Volume: 90
Number (issue): 1
Pages: 12--15
Year: 2007
Month: January

Department(s): Perceiving Systems
Bibtex Type: Article (article)
Paper Type: Journal

Links: pdf


  title = {Neuromotor prosthesis development},
  author = {Donoghue, J.P. and Hochberg, L.R. and Nurmikko, A.V. and Black, M.J. and Simeral, J.D. and Friehs, G.},
  journal = {Medicine & Health Rhode Island},
  volume = {90},
  number = {1},
  pages = {12--15},
  month = jan,
  year = {2007},
  month_numeric = {1}