Neurofeedback can enhance the signal-to-noise ratio in
thought, enabling a sharper focus on tasks—and a better understanding of
brain-computer interfaces.
The sweep of a needle across the grooves of a worn vinyl
record carries distinct sounds: hisses, scratches, even the echo of skips. For
many years, though, those yearning to hear Frank Sinatra sing “Fly Me to the
Moon” have been able to listen to his light baritone with technical clarity,
courtesy of the increased signal-to-noise ratio of digital remasterings.
Now, with advances in neurofeedback techniques, the
signal-to-noise ratio of the brain activity underlying our thoughts can be
remastered as well, according to the recent discovery of a research team led by
Stephen LaConte, an assistant professor at the Virginia Tech Carilion Research
Institute.