Accession Number : AD0645206

Title :   STIMULUS CHANGE PROPERTIES OF THE RT READY SIGNAL.

Descriptive Note : Interim rept.,

Corporate Author : ARMY MEDICAL RESEARCH LAB FORT KNOX KY

Personal Author(s) : Adams,C. K. ; Behar,I.

Report Date : 31 AUG 1966

Pagination or Media Count : 13

Abstract : Two studies tested the generality of the Perkins-Logan hypothesis in the reaction-time experiment. Both studies used a parametric design with four ambient (intertrial) intensities of white noise ranging from 0 to 90 dB in all combinations with the same four intensities used as ready signals. Direction of change (increase or decrease) from the ambient intensity was significant in one of the two studies, but magnitude of change (30, 60, or 90 dB) produced a highly significant effect in both studies. (Author)

Descriptors :   (*REACTION(PSYCHOLOGY), REFLEXES), (*AUDITORY SIGNALS, WHITE NOISE), (*CONDITIONED RESPONSE, AUDITORY SIGNALS), INTENSITY, STIMULATION(PHYSIOLOGY), ANALYSIS OF VARIANCE

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE