Subjective and Physiological Reactions Induced by Electrical Shocks of Varying Intensity

Abstract
Effects of alternating current of different intensities applied at irregular intervals to 2 fingers of one hand during 5 separate sessions were studied in 15 subjects. The intensities ranged between 2 and 8 times the individual sensation thresholds. In line with the assumptions made, increases in shock intensity were accompanied by increased unpleasantness (measured by the method of magnitude estimation), increased ad?renaline [epinephrine] excretion, and decreased tissue resistance. Furthermore, unpleasantness was a positively accelerated function of epinephrine excretion and tissue resistance.

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