…signals produced by each eyeball and the muscles that blink and move the eyes appear as slow-wave activity in the EEG, and they are so much larger than brain signals…

…Lots more 60 Hz signal when it is by itself is often a measure of quality of hookup. When it is very high relative to the rest of the power…

…in FRE2C designs December 5, 2014 FIX: SMR%1C filter correction November 19, 2014 Added SIGNAL QUALITY – Impedance-Offset November 6, 2014 FIX: FRE2C filter correction November 3, 2014 Added FRE2C…

…the signal is disrupted. Keep the face relaxed, without grimacing or wrinkling the forehead. Avoid any light getting to the sensor from a window or room lighting.   En la…