What are they, these reactions? Obviously, the following. To avoid closed spaces, to not get in a blockage. To aspire to leave from the towering objects threatening by a landslide. To run "where eyes look" to leave from the region of natural disasters. Naturally, all this should be accompanied by feeling of panic anxiety - horror.

The guess about presence of such mechanism is confirmed with precise enough purposefulness of behaviour. And now it is possible to observe similar reaction at many animals. Here pertinently to remembert numerous cases described in press when dogs took out small children before earthquakes. In same time, at direct action on an organism there are inconcrete reactions, such as flaccidity, delicacy, various frustration, etc., as, for example, at irradiation with X-rays and high frequency radiowaves.

The man has lost high sensitivity to infrasonic oscillations. But at major intensity, ancient protective reaction wakes up, blocking possibilities of conscious behaviour. It is necessary to underline, that the fear will not be caused by exterior images, and will radiate from within. The man will have sensing, feeling of "something awful". Probably this circumstance causes last words of the lost pilots and seamen: "the sky is not such one", "the sea looks somehow differently", "there is something awful". It is thought, if the fear was caused by exterior images then people of these professions, people of courage, got used to dangers, could transmit concrete messages.

People can be subject to panic in a various degree depending on infrasound intensity. They can sit in boats and swim away from the ship. They can throw themselves from the board. Or, at very major infrasound intensity they can perish. All it it was repeatedly mentioned.

Human consciousness will look for the reason of the similar phenomena, - to try to interpret them. And, if this consciousness is brought up on legends and myths then also interpretation will be corresponding, for example, the myth about calling syrens (Odyssey's travels).