[Exposure to permanent magnetic fields and the reticular effects on the adrenergic and cholinergic systems].

An exposure of rats to a constant magnetic field of 0.4 T for 1 hour caused increases in the blood content of adrenaline, noradrenaline, and acetylcholine, and in the adrenal content of adrenaline. Stimulation of the midbrain reticular formation led to a significant increase of the blood concentration of catecholamines and acetylcholine. After an exposure to the constant magnetic field the stimulatory effects of the reticular formation on the adrenergic systems diminished and on the cholinergic systems remained elevated.