Talk:Otoacoustic emission

Wiki Education Foundation-supported course assignment
This article was the subject of a Wiki Education Foundation-supported course assignment, between 27 August 2018 and 7 December 2018. Further details are available on the course page. Student editor(s): Sara.hartson.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 05:54, 17 January 2022 (UTC)

Biometrics
Maybe too fresh to add to the article but this looks interesting -- http://www.telegraph.co.uk/scienceandtechnology/science/sciencenews/5219233/Ear-noise-can-be-used-as-identification.html --Kvng (talk) 13:54, 30 April 2009 (UTC)

Evoked and...?
Here, evoked otoacoustic emissions are mentioned, but there are of course emissions generated by the cochlea, which this article doesn't mention. The article needs to be expanded to include this informtation. &mdash; Mike.lifeguard &#124; @en.wb 00:56, 17 October 2009 (UTC)

Ya - these are called 'spontaneous OAE' ... they have relatively lower occurrence compared to evoked, but they should definitely be included in the article. 170.134.55.1 (talk) 18:17, 6 December 2011 (UTC)

Those of you reading here are most likely researchers, so for your information: When I was a child I was (or thought I was) able to evoke otoacoustic emissions. I wanted to test that but never managed to attempt it. After reading this article I'm much less suspicious that self-controlled otoacoustic emissions are possible. I was probably 10 years old the last time I tried that trick and I'm now 58. I just listened to 4kHz and 6kHz tones and if memory serves the frequency was fairly high, perhaps 6kHz or above? Neworion (talk) 14:22, 20 October 2016 (UTC)

Does the Cochlea also...?
Does the Cochlea also emit the sounds that are heard by the individual as tinnitus? If not are there any studies that could make sense of the ideas that changes in ear hair follicles or colds might affect the problem of tinnitus? This could also be used under medical EENT.

Otoacoustic Emissions and Noise-Induced Hearing Loss
The first two sentences are currently on the page. I would like to add the following to the short explanation of NIHL and OAEs:

In conjunction with audiometric testing, OAE testing can be completed to determine changes in the responses. Studies have found that exposure to noise can cause a decline in OAE responses. OAEs are a measurement of the activity of outer hair cells in the cochlea, and noise-induced hearing loss occurs as a result of damage to the outer hair cells in the cochlea. Therefore the damage or loss of some outer hair cells will likely show up on OAEs before showing up on the audiogram. Studies have shown that for some individuals with normal hearing that have been exposed to excessive sound levels, fewer, reduced, or no OAEs can be present. This could be an indication of noise-induced hearing loss before it is seen on an audiogram.

Sara.hartson (talk) 00:22, 11 November 2018 (UTC)

OAEs and NIHL
I'd like to add this to the above paragraph as well:

In one study, a group of subjects with noise exposure was compared to a group of subjects with normal audiograms and a history of noise exposure, as well as a group of military recruits with no history of noise exposure and a normal audiogram. In a study, a group of subjects with noise exposure was compared to a group of subjects with normal audiograms and a history of noise exposure, as well as a group of military recruits with no history of noise exposure and a normal audiogram. They found that an increase in severity of the noise-induced hearing loss resulted in OAEs with a smaller range of emissions and reduced amplitude of the emissions. The loss of emissions due to noise exposure was found to occur in mostly the high frequencies, and it was more prominent in the groups that had noise exposure in comparison to the non-exposed group. It was found that OAEs were more sensitive to identifying noise-induced cochlear damage than pure tone audiometry. In conclusion, the study identified OAEs as a method for helping with detection of the early onset of noise-induced hearing loss.

Hi Sara, I think this is a great topic, however, I would add in what can happen to OAE responses if the individual has damage but it doesn't show up on the audiogram? Baut1953 (talk) 03:10, 3 December 2018 (UTC)Baut1953 Sara.hartson (talk) 00:28, 11 November 2018 (UTC)