This year is the centennial anniversary of German psychiatrist Hans Berger’s invention of electroencephalography (EEG), a way to record electrical activity in the brain, now called brainwaves or neural oscillations. Amazingly, Berger was motivated after an incident in his military years when he believed he had spontaneously transmitted something from his brain to his sister during a sudden moment when he was nearly killed in an accident, and his sister several kilometers away insisted their father get in touch with him.
Assessing synchronized activity in the human brain through frequency-dependent covariance analysis
