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Brain Computer Interfaces for Functional Recovery From Brain Injury (BCI)

The recruitment status of this study is unknown because the information has not been verified recently.
Verified October 2010 by University of Washington.
Recruitment status was  Recruiting
Life Sciences Discovery Fund
Information provided by:
University of Washington Identifier:
First received: September 8, 2010
Last updated: October 20, 2010
Last verified: October 2010

September 8, 2010
October 20, 2010
September 2010
August 2013   (final data collection date for primary outcome measure)
Link EMG activity produced during a motor task to stimulation of a part of the brain [ Time Frame: 3 years ] [ Designated as safety issue: No ]
Attempt to link EMG activity produced during a motor task to stimulation of a part of the brain nearby, but distinct from, the part of the brain normally used to perform the task.
Same as current
Complete list of historical versions of study NCT01198964 on Archive Site
Test whether the language system can show stimulation-induced plasticity when stimulation is conditional on language processing [ Time Frame: 3 years ] [ Designated as safety issue: No ]
The parallel analogies to the motor experiments will be attemps at language production substituting for movement and, secondly, electrocortical activity at language sites substituing for motor sites.
Same as current
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Brain Computer Interfaces for Functional Recovery From Brain Injury
Brain Computer Interfaces for Functional Recovery From Brain Injury

We will observe epileptic patients who already have electrodes implanted on the brain and are receiving high-level brain stimulation for clinical purposes while testing their motor and language function. We propose to do a limited, low-level brain stimulation to show that the signatures of local activity in the target area change as an effect of brain stimulation. The goal of this study is to understand the feasibility of a novel recurrent brain-computer interface that could eventually promote targeted functional recovery in subjects who have had a brain injury.

The subject will have already been scheduled for placement of the ECoG electrodes on the surface of the brain and who will, for all clinical purposes, subsequently receive stimulation for mapping of function of the ECoG sites. The decision to place the electrodes on the brain, the location of the electrodes and the length of time the electrodes are in are all part of clinical care.

There will be two types of testing, motor and language. Motor will involve inducing stimulation to the thumb cortex and the wrist cortex. There will be a conditioning of this over 4-12 hours. Language will involve showing pictures on a computer screen and the subject will be observed whether speech is disrupted with stimulation or not.

Observational Model: Case-Only
Time Perspective: Prospective
Not Provided
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Non-Probability Sample

Age 18 and older male and female epileptic patients who are referred for surgical implantation of electrodes.

  • Epilepsy
  • Brain Injury
Procedure: Low-level cortical stimulation
A couple of electrodes will be stimulated (at a lower level than the stimulation used for standard care) over a period of 4-12 hours based on the signals defined by the motor or language task.
Epileptic Patients
The population of patients with medically refractory epilepsy will already have been recommended clinically for electrode grid placement on the brain and high-level stimulation to map brain function.
Intervention: Procedure: Low-level cortical stimulation
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
August 2013
August 2013   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Age 18 and older
  • Male and Female
  • Able to understand English for consenting and testing
  • Referred for surgical implantation of electrodes

Exclusion Criteria:

  • Under 18 years of age
  • Pregnant women
  • Prisoners
  • Mentally disabled IQ < 70
  • Non English Speaking
  • Not candidates for surgical implantation of electrodes
18 Years and older
Contact: Jeffrey G Ojemann, MD 206-987-4240
Contact: Eberhard E Fetz, PhD 206-543-4839
United States
Jeffrey Ojemann, M.D., University of Washington
University of Washington
Life Sciences Discovery Fund
Principal Investigator: Jeffrey G Ojemann, MD University of Washington
University of Washington
October 2010

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP