抄録
It has been well established by many authers that sound stimuli produce vasoconstriction of peripheral blood vessels. Intensity of the vasocon-striction response depend upon the sound level (Jansen and Rey, 1962, Fucks-Schmuck and Simon, 1969). The response has been observed mostly by a plethysmography. It was reported that the response occures independent of annoyance or any other mental states (Osada et al., 1977). But it is not clear a relation between the response and the age of subjects. The purpose of this study has been to get a relationship between the peripheral vasoconstriction produced by the noise and age in adults.
