Structurally based changes of renal vascular reactivity in spontaneously hypertensive and two‐kidney, one‐clip renal hypertensive rats, as compared with kidneys from uninephrectomized and intact normotensive rats
- 1 May 1983
- journal article
- Published by Wiley in Acta Physiologica Scandinavica
- Vol. 118 (1), 61-67
- https://doi.org/10.1111/j.1748-1716.1983.tb07241.x
Abstract
The human threshold of sensation of 50 Hz current has hitherto been considered to be around 1 mA. A new sensing mechanism is reported which lowers the threshold about 3 decades. It is elicited when the skin slides on the current carrying conductor, and the sensation disappears when the skin is wet. The sensation is a feeling of vibration or increased surface roughness. The sensing mechanism has been shown to be due to electrostatic forces in the skin caused by the electric field in a poorly conducting stratum corneum. The mechanism is primarily potential dependent, and the absolute threshold of sensation has been found to be about 1.5 volt or 0.15 mu A rms at 50 Hz. In practical daily-life situations it is shown that 82% of 40 test subjects were able to sense a current of 2 mu A rms, 50 Hz.Keywords
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