[Dependence of acoustic-motor reaction of healthy individuals from geomagnetic activity].

During February-April, 2008 using special computer test, a daily monitoring of simple acoustic-motor reaction was carried out in 18 healthy tested individuals. We found a significant decrease in the speed of acoustic-motor reaction the day before and the same day geomagnetic disturbance occurred, as well as the same and 2-3 days after a geomagnetic calm occurred. Presumably, either an essential increase or a decreases of geomagnetic activity are adverse factors for the functional state of a central nervous system.