Affordable Access

Minimum intensities of white noise which produce the vasomotor response.

Authors
  • Mojdehi, R
  • Weiler, E
  • Ramirez, C
Type
Published Article
Journal
British journal of audiology
Publication Date
Nov 01, 1980
Volume
14
Issue
4
Pages
132–136
Identifiers
PMID: 7437584
Source
Medline
License
Unknown

Abstract

Twelve normal hearing awake adult subjects were tested to determine the minimum intensities of white noise which produce a detectable change in digital blood flow. A digital plethysmograph was utilised to detect and record these changes. The stimulus intensity was adjusted in 5 dB increments, beginning at an intensity below voluntary threshold, for a total of four data trials. The range of minimum intensities producing the response was 20 to 60 dB HTL, however, there was no significant variation in the mean intensities required to produce the response from trial to trial (F = 0.48, df-3.30, N.S.). The results support further research into the development of peripheral vascular techniques in determining the presence or absence of hearing for individuals who cannot be tested by voluntary audiometry.

Report this publication

Statistics

Seen <100 times