[The activity of myelinated nerve fibers to heat and burn exposures of the skin].

Abstract

Activity of myelinated fibres in the n. saphenus was investigated by the crosscorrelation method in the cat's skin stimulated by heat and burn. The decrease of the total nerve activity under the heat action is proved to be related mostly to a change in A beta-fibres. It is shown that pain caused by heating of the skin over 42 degrees C activated A delta-fibres. The results obtained permit solving the problem of the heat information code from the view-point of the flow "pattern" theory.