Mesurement of noise-evoked blood pressure by means of averaging method: Relation between blood pressure rise and SPL

摘要: Abstract Continuous measurement of systolic blood pressure is carried out while white noise presented repeatedly to the subjects, and signal output device stored in computer. It has been found that rise owing sound presentation clearly shown by synchronized averaging signal. The present authors refer this as noise-evoked pressure. results experiments using stimulus, with levels (SPLs) from 60 100 dB, indicate evoked reaches its peak at about 10 s after onset noise, then gradually falls off. proportional SPL 8·8 mmHg for dB noise.