Cochlear Battery flashcards |

This is a Free Service provided by Why Fund Inc. (a 501 C3 NonProfit) We thank you for your donation!


(1. Click on the course Study Set you wish to learn.) (2. If you wish you can click on "Print" and print the test page.) (3. When you want to take a test...click on anyone of the tests for that Study Set.) (4. Click on "Check Answers" and it will score your test and correct your answers.) (5. You can take all the tests as many times as you choose until you get an "A"!) (6. Automated college courses created from lecture notes, class exams, text books, reading materials from many colleges and universities.)

๎„?

Long-Term Learning

Learn efficiently and remember over time.

Start Long-Term Learning

Get personalized study reminders at intervals optimized for better retention.
Track your progress on this set by creating a folder

Reflexes: Premise

That it will take a while before they can hear it, but they will hear it b/c they will have recruitment

Reflexes: Recruitment

Caused by the loss of OHC

Reflexes: Sensation Levels

-Do we have that smaller dynamic range

-They may have a reduced dynamic range b/w where they can finally hear and where it becomes painfully loud

Short Increment Sensitivity Index (SISI): Premise

Determines if the patients is able to notice a 1 dB increment change (JND)

Short Increment Sensitivity Index (SISI): Methods

1. Plays and ongoing sound at a specific loudness, start at about 10 dB above

2. Increases by 1 dB 20 times, if they raise their hand saying they heard the difference they heard the difference

Short Increment Sensitivity Index (SISI): Interpretation

-Most people with normal hearing will not be able to hear a 1 dB difference, can tell about 7 times, but not all 20

-If they have recruitment, they will be able to respond to more than 7 and they have a cochlear/sensory loss b/c they have a small distance b/w being able to hear it and it being too loud

Loudness Growth: Premise

Look for the length of the dynamic range

Loudness Growth: Performance

-Tell me when you barely hear it, clearly hear it, it's loud, it's almost uncomfortable, it's painfully loud

-May not do all the middle ones, unless we are doing a hearing aid

Loudness Growth: Interpretation

Normal hearing: Barely hear it = 0 dB & Painful = 100-110 dB

-W/ Recruitment - Must go from barely hearing it to painfully loud within a very small dynamic range (40 dB range)

Loudness Growth: Tonal and/or Speech

-UCL: speech

-LDL: tone

-60 dB or below, dynamic range is small between quiet and loudest sound.

Alternative Binaural Loudness Balance Test (ABLB): Premise

Use if they have one normal ear and one bad ear, to look for recruitment

Alternative Binaural Loudness Balance Test (ABLB): Methods

1. Compare to ear that has a hearing loss

2. Complete recruitment = when the bad ears hears the same as the good ear - It has to get smaller and smaller units to match the loudness perception

Alternative Binaural Loudness Balance Test (ABLB): Interpretation

...

OAEs: Premise

-Looks at the OHC movement

-We can measure the outer hair cell function (assuming they have a normal tympanogram)

OAEs: Transient

Put click that stimulate the cochlea at the whole time and measures what comes out

OAEs: Distortion Products

- Put 2 sounds in and you measure if a third sound comes out

-Typically screen with DP, to look at specific frequencies

OAEs: Interpretation

-If they sound goes in and the OAEs come back out = IHCs are damaged

-If the sound goes in and NO OAEs come back = OHCs are damaged - Suggesting Cochlear/Sensory loss and they have recruitment

Please allow access to your computerโ€™s microphone to use Voice Recording.

Having trouble? Click here for help.

๎€˜
๎€—

We canโ€™t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

๎€ 
Voice Recording

This is a Plus feature

๎€ 

๎€ 
๎€‚ Create Study Set