Re: Research Shows Each Ear Process Different Types of Sound

[Guest guest]

I thought this sounded interesting too, so I tracked down the

original article. It is in Science Vol. 305 p. 1581, Sept. 10,

2004. It is just one page long. If anyone is interested, I can

send the PDF file.

What the authors did was to use two different kinds of Otoacoustic

Emissions tests, one that is tone-based (DPOAE) and the other click-

based (TPOAE). Testing 1593 infants, they found that on average,

the left ears responded more to the DPOAE tones and the right ears

to the TPOAE clicks. (The TPOAE click is supposed to be more

similar to speech.)

A good fraction of the babies tested had the opposite tone/click

signal preference to the average (i.e. stronger response to tones on

the right and clicks on the left). It is too bad that deaf kids

usually don't have measurable OAEs, because if they did, this seems

like it would be a really good way to figure out which ear to

implant!

The link Cheryl sent took a really long time to download on my

computer for some reason. I found this other article that might be

faster if you had trouble with the first:

http://yalenewhavenhealth.org/healthnews/healthday/040909HD521137.htm

Lydia

Mom of , 7 1/2 deaf

and Colin 10 1/2 hearing

> http://my.webmd.com/content/article/94/102552.htm?

z=1728_00000_1000_nb_06

>

> Thought this was interesting.

>

> Cheryl

[Guest guest]

I thought this sounded interesting too, so I tracked down the

original article. It is in Science Vol. 305 p. 1581, Sept. 10,

2004. It is just one page long. If anyone is interested, I can

send the PDF file.

What the authors did was to use two different kinds of Otoacoustic

Emissions tests, one that is tone-based (DPOAE) and the other click-

based (TPOAE). Testing 1593 infants, they found that on average,

the left ears responded more to the DPOAE tones and the right ears

to the TPOAE clicks. (The TPOAE click is supposed to be more

similar to speech.)

A good fraction of the babies tested had the opposite tone/click

signal preference to the average (i.e. stronger response to tones on

the right and clicks on the left). It is too bad that deaf kids

usually don't have measurable OAEs, because if they did, this seems

like it would be a really good way to figure out which ear to

implant!

The link Cheryl sent took a really long time to download on my

computer for some reason. I found this other article that might be

faster if you had trouble with the first:

http://yalenewhavenhealth.org/healthnews/healthday/040909HD521137.htm

Lydia

Mom of , 7 1/2 deaf

and Colin 10 1/2 hearing

> http://my.webmd.com/content/article/94/102552.htm?

z=1728_00000_1000_nb_06

>

> Thought this was interesting.

>

> Cheryl

[Guest guest]

I thought this sounded interesting too, so I tracked down the

original article. It is in Science Vol. 305 p. 1581, Sept. 10,

2004. It is just one page long. If anyone is interested, I can

send the PDF file.

What the authors did was to use two different kinds of Otoacoustic

Emissions tests, one that is tone-based (DPOAE) and the other click-

based (TPOAE). Testing 1593 infants, they found that on average,

the left ears responded more to the DPOAE tones and the right ears

to the TPOAE clicks. (The TPOAE click is supposed to be more

similar to speech.)

A good fraction of the babies tested had the opposite tone/click

signal preference to the average (i.e. stronger response to tones on

the right and clicks on the left). It is too bad that deaf kids

usually don't have measurable OAEs, because if they did, this seems

like it would be a really good way to figure out which ear to

implant!

The link Cheryl sent took a really long time to download on my

computer for some reason. I found this other article that might be

faster if you had trouble with the first:

http://yalenewhavenhealth.org/healthnews/healthday/040909HD521137.htm

Lydia

Mom of , 7 1/2 deaf

and Colin 10 1/2 hearing

> http://my.webmd.com/content/article/94/102552.htm?

z=1728_00000_1000_nb_06

>

> Thought this was interesting.

>

> Cheryl

[Guest guest]

Whoops, I made a mistake -- it should be TEOAE not TPOAE. Sorry if

anyone was searching using that second term and not finding it or

whatever, and sorry for the additional email!

Lydia

> > http://my.webmd.com/content/article/94/102552.htm?

> z=1728_00000_1000_nb_06

> >

> > Thought this was interesting.

> >

> > Cheryl