The effect of water deprivation on the skin resistance of the rat.

Impaired acquisition of passive avoidance behavior by subcallosal, septal, hypothalamic, and insular lesions in rats.

“…Because of the variability of rats' skin resistance and the general increase in resistance brought about by dehydration of the organism (as in the present study), a very high external resistance was put in series with the animal. The rationale for this has already been reported (Rasmussen, 1959). The shock employed in the present work was 475 v., 50 cps, and there was an external resistance of 2.6 megohms, corresponding to a current of 0.183 ma.…”