Abstract
Blister-skin and warts have been studied as possible sources of 'pure' stratum corneum without sweat ducts. The purpose of the study was to assess whether the DC electrical conductance measured on human skin is totally dominated by the sweat ducts, or is also significantly contributed to by the stratum corneum itself. By means of galvanic skin response (GSR) measurements, these tissues were found to be unrealiable as sources of 'pure' stratum corneum. This is because they displayed significant GSR waves, and hence should have some form of active pores. However, measurements on blister-skin and nail in situ revealed a substantial frequency independent electrical conductance at frequencies typically below 10 Hz.
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