Lecture 9 Slides

Lecture 9 Slides - Review Diagnostics II z Otoacoustic...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Review Diagnostics II z Otoacoustic Emission (OAE) Low-level acoustic signal of cochlear origin recorded in ear canal. Caused by rocking motion of OHCs Used for audiometric screening of newborns Not a measure of hearing z Auditory Brainstem Response (ABR) An electrical signal measured on the scalp Caused by synchronous firing of neurons in the auditory brainstem Used for diagnostic assessment of difficult to test patients Not a measure of hearing Hearing Instruments Hearing instruments include Traditional hearing aids Implanted devices Assistive listening devices They benefit individuals with Conductive hearing loss Sensorineural hearing loss Profound hearing loss The ideal aid would Amplify only inaudible sounds Amplify speech relative to background noise History of Hearing Aids, 1800s z Popular in the 1800s z Amplification through sound funneling Hearing Trumpets History of Hearing Aids, 1800s Hearing Trumpets History of Hearing Aids, 1800s Hearing Trumpets History of Hearing Aids, 1800s Hearing Trumpets History of Hearing Aids, 1800s...
View Full Document

This note was uploaded on 03/21/2012 for the course COM DIS 110 taught by Professor Weismer during the Fall '08 term at Wisconsin.

Page1 / 4

Lecture 9 Slides - Review Diagnostics II z Otoacoustic...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online