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.
Ortner, R., Allison, B. Z., Pichler, G., Heilinger, A., Sabathiel, N., Guger, C. Assessment and Communication for People with Disorders of Consciousness. J. Vis. Exp. (126), e53639, doi:10.3791/53639 (2017).