Continuous stimulation and arousal level in infancy: effects of stimulus intensity and stress.
The effectiveness of continuous stimulation in lowering arousal level, as indexed by state and heart rate, was studied in 30 uncircumcised males, 30 circumcised males, and 30 female subjects. The continuous-stimulation effect was shown to be directly related to auditory stimulus intensity. It is more complexly related to preexisting stress, operationally defined as subjects' circumcision status.
D000161:Acoustic Stimulation; D000328:Adult; D001143:Arousal / Q000502:physiology*; D002944:Circumcision, Male; D005260:Female; D006339:Heart Rate; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D013315:Stress, Psychological / Q000502:physiology*