REDUCTION OF PALMAR SKIN POTENTIAL BY EPIDERMAL HYDRATION
REDUCTION OF PALMAR SKIN POTENTIAL BY EPIDERMAL HYDRATION
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DOI：
10.1111/j.1469-8986.1970.tb02231.x
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发表时间：
1970-01-01
期刊：
影响因子：
3.7
通讯作者：
VENABLES, PH
中科院分区：
文献类型：
--
作者：
FOWLES, DC;VENABLES, PH
同时测量4个表皮水合水平的掌侧皮肤电位(SP)，发现汗腺活动时最少水化部位(聚乙二醇预处理)和最水化部位(蒸馏水处理)的平均值相差35 mV。研究还表明，在用含水电解液记录的前15分钟内，SP含量有所下降，这可以归因于对皮肤施加电解液。因此，水合效应似乎是一个巨大的、不受控制的变异源，如果要通过SP测量获得具有生理意义的结果，就必须对其进行控制。水合效应可能会对先前被引用的数据提供另一种解释，该数据支持表皮膜有助于SP的假设。
Simultaneous measurements of palmar skin potential (SP) at four levels of epidermal hydration yielded a difference of 35 mv between the mean values for the least hydrated site (pretreated with polyethylene glycol) and the most hydrated site (pretreated with distilled water) during sweat gland activity. It was also demonstrated that there was a decline in SP during the first 15 min of recording with aqueous electrolyte which can be attributed to the application of an electrolyte to the skin. Thus the hydration effect appears to be a large, uncontrolled source of variance which must be brought under control if physiologically meaningful results are to be obtained with SP measurements. The hydration effect may offer an alternative interpretation of data previously cited as supporting the hypothesis that an epidermal membrane contributes to SP.