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Neuroscience JoVE (Open Access) Citable · DOI

Assessment and Communication for People with Disorders of Consciousness

DOI: 10.3791/53639-v
What you'll learn
  • ✓ Set up vibrotactile P300 brain-computer interface hardware and electrode configuration
  • ✓ Administer vibrotactile stimulation protocol to assess consciousness in disordered patients
  • ✓ Interpret EEG P300 responses to establish yes/no communication capability
  • ✓ Apply BCI methodology for detecting covert consciousness in non-responsive populations
Protocol

Biopharma Insights With this experiment, one might be able to detect consciousness in people with disorders of consciousness. Furthermore, the approach can create a simple communication channel that enables people to give simple YES/NO answers to questions.

Difficulty
advanced
Total time
~1-2 hours per patient assessment session

Steps

1
Prepare vibrotactile BCI system hardware setup

Configure EEG acquisition equipment, vibrotactile stimulators, and electrode placement according to P300 protocol specifications. Verify signal quality and stimulator calibration before patient assessment.

▶ 00:54
2
Deliver vibrotactile P300 stimulation across three sites

Apply controlled vibrotactile stimuli to designated body locations while recording continuous EEG. Present target and non-target stimuli in randomized sequences to evoke P300 event-related potentials.

▶ 02:55
3
Analyze EEG responses and establish communication

Process P300 component amplitudes and latencies from recorded EEG to decode patient intent. Generate binary yes/no responses based on discriminant P300 features and communicate results.

▶ 05:41
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