Abstract: | The primary physical mechanism of the magnetoreception of weak magnetic fields is considered. It imposes limits on the magnetic biological effect at the stage prior to the involvement of specific biophysical and biochemical mechanisms, i.e., regardless of the nature of the target of the magnetic field. It has been shown that the biological effects of weak magnetic fields have, in general, non-linear and spectral properties. Observation of these characteristics gives information not only on the gyromagnetic ratio, but also on the parameters of the interaction between the target and its immediate surroundings. This makes it possible for one to develop schemes for the identification of the biophysical mechanisms of magnetoreception. |