by
Thomas Dworetzky, Contributing Reporter | February 02, 2017
The study measured blood oxygenation and brain activity in four subjects using near-infrared spectroscopy (NIRS) and electroencephalography (EEG). The individuals were asked questions, which they could hear. They “learned to answer personal questions with known answers, and open questions all requiring a “yes” or “no” thought, using frontocentral oxygenation changes measured with NIRS,” the study reported.
Three patients were able to finish 46 sessions and one completed 20. The results showed “an above-chance-level correct response rate over 70 percent,” according to researchers.
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Professor John Donoghue, director of the Wyss Center, also stressed the critically important promise of wider applications of this technology when he observed that, "restoring communication for completely locked-in people is a crucial first step in the challenge to regain movement, adding, “the technology used in the study also has broader applications that we believe could be further developed to treat and monitor people with a wide range of neurological disorders."
This NIRS communication approach is the only one that has been “successful” to date, in those with CLIS.
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