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Updated: May 28, 2026

Assessment and Communication for People with Disorders of Consciousness
07:37

Assessment and Communication for People with Disorders of Consciousness

Published on: August 1, 2017

Signals from intraventricular depth electrodes can control a brain-computer interface.

Jerry J Shih1, Dean J Krusienski

  • 1Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA. shih.jerry@mayo.edu

Journal of Neuroscience Methods
|November 3, 2011
PubMed
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Brain-computer interfaces (BCIs) enable communication for disabled individuals using brain waves. Intraventricular electrodes successfully controlled a P300 Speller BCI, offering new signal acquisition possibilities.

Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Rehabilitation Technology

Background:

  • Brain-computer interfaces (BCIs) facilitate communication and environmental interaction for individuals with severe disabilities.
  • Scalp-recorded electroencephalography (EEG) is commonly used in human BCI research.
  • Previous studies utilized intracranial electrocorticography (ECoG) and hippocampal stereotactic depth electrodes (SDE) for BCI control.

Observation:

  • This study reports a novel case using stereotactic depth electrodes placed within the ventricle to acquire viable brain signals.
  • Event-related potentials (ERPs) were successfully recorded from intraventricular electrodes.

Findings:

  • Intraventricular electrodes demonstrated the ability to obtain usable signals for a brain-computer interface.

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  • These signals reliably controlled a P300 Speller BCI paradigm, showcasing the efficacy of ERPs from this location.

    • Implications:

    • This research expands the potential electrode placement sites for BCI signal acquisition.
    • Intraventricular electrode-based BCIs could offer a new avenue for restoring communication in severely disabled populations.
    • Further investigation into intraventricular signal characteristics may optimize BCI performance.