Accession Number : AD0618081

Title :   THE INFLUENCE OF INTENSITY AND DURATION OF ELECTRICAL STIMULATION ON SUBJECTIVE VARIABLES.

Descriptive Note : Scientific rept.,

Corporate Author : STOCKHOLM UNIV (SWEDEN) PSYCHOLOGICAL LABS

Personal Author(s) : Ekman,Gosta ; Frankenhaeuser,Marianne ; Levander,Sonja ; Mellis,Inga

Report Date : JAN 1965

Pagination or Media Count : 10

Abstract : The unpleasantness and subjective duration of an A.C. current of 50 c/sec applied to two fingers was scaled by subjects using the method of magnitude estimation. Stimulation was varied with regard to both intensity, ranging between 1.5 and 3.5 times the individual sensation threshold, and duration, ranging from 0.18 to 1.72 sec. It was found (1) that unpleasantness increased approximately logarithmically with stimulus duration, (2) that unpleasantness was a power function, with the exponent 1.5, of stimulus intensity measured with the sensation threshold as zero point, (3) that subjective duration was essentially linearly related to stimulus duration, and (4) that subjective duration increased approximately logarithmically with intensity of stimulation. (Author)

Descriptors :   (*PAIN, PSYCHOPHYSIOLOGY), (*ALTERNATING CURRENT, PSYCHOPHYSIOLOGY), (*PERCEPTION(PSYCHOLOGY), ALTERNATING CURRENT), REACTION(PSYCHOLOGY), THRESHOLDS(PHYSIOLOGY), STRESS(PSYCHOLOGY), INTENSITY, STIMULATION(PHYSIOLOGY), FUNCTIONS(MATHEMATICS), SWEDEN

Distribution Statement : APPROVED FOR PUBLIC RELEASE