article_snippet.sent: Researchers in North Carolina tested Researchers in North Carolina theory using a 10-Hertz current on the brain's of 20 volunteers to stimulate the brain's natural alpha wave oscillations.
article_snippet.sent: Flavio Frohlich, an assistant professor of psychiatry at the University of North Carolina were discovered in 1929 by Hans Berger, who invented EEG.
article_snippet.sent: scientists tested scientists theory using a 10-Hertz current run through electrodes attached to the scalp on 20 volunteers to stimulate the brain's natural alpha wave oscillations.
article_snippet.sent: scientists then recorded the results using EEG .
article_snippet.sent: This way, the 10-Hertz alpha oscillation stimulation for each side of the cortex would be in unison.
highlights_snippet.sent: Researchers ran a 10-Hertz current through brains of 20 volunteers .
  