[Cerebral evoked potential recovery cycles following exposure to a constant magnetic field in rats].
The recovery cycles of somatosensory evoked potentials (EP) in the cerebral cortex, hypothalamus and cerebellar cortex were studied in experiments on rats. During the action of constant magnetic field (CMF) with an intensity, subthreshold for the changes in biopotentials, as well as after intensive magnetic influence, the recovery of the response to test stimulation of the nerve was more rapid and more complete, the duration of areactivity and subnormality periods was reduced and phenomenon of facilitation was observed. The obtained data testify to a rise in the level of excitability of the studied brain structures under the effect of CMF. Paired stimulation of sciatic nerve with definite interstimuli intervals may also lead to the intensification or provocation of the "magnetic effect"--the appearance in the EP structure of additional phases under the effect of the subthreshold field.
D000818:Animals; D002525:Cerebellar Cortex / Q000502:physiology*; D005071:Evoked Potentials; D007031:Hypothalamus / Q000502:physiology*; D008280:Magnetics; D051381:Rats; D013003:Somatosensory Cortex / Q000502:physiology*
Tsikly vosstanovleniia vyzvannykh potentsialov mozga pri vozdeĭstvii postoiannogo magnitnogo polia u krys.