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SLP 309 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

Rules out participation by the non-test ear

A

Masking

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2
Q

When sound presented to the test ear arrives at the cochlea of the non-test ear

A

Crossover

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3
Q

How can crossover occur (2)?

A

Sounds leaks around the headphones and travel by air conduction, BC by vibrations through the skull

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4
Q

Drop in intensity of a sound as it crosses over to the non-test ear

A

Interaural attenuation

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5
Q

What is the maximum interaural attenuation by AC?

A

60 dB

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6
Q

What is the minimum interaural attenuation by AC?

A

40 dB

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7
Q

What is the interaural attenuation we should assume by AC?

A

40 dB

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8
Q

What is the actual interaural attenuation by AC?

A

40-50 dB

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9
Q

What is the maximum interaural attenuation by BC?

A

10-15 dB

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10
Q

What is the minimum interaural attenuation by BC?

A

0 dB

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11
Q

What is the actual interaural attenuation by BC?

A

0-10 dB

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12
Q

What interaural attenuation should we assume by BC?

A

10 dB

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13
Q

Audiogram of left ear or right ear mirrors the other ear and has a difference of 40 dB

A

Shadow curve

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14
Q

When do we mask during AC?

A

AC threshold minus of test ear BC of non-test ear is greater than or equal to 40 dB

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15
Q

When do we mask during BC?

A

AC threshold in test ear minus BC threshold of test ear is greater than 0

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16
Q

What type of noise do we use during masking?

A

Narrow band

17
Q

Width of noise necessary same as white noise

A

Critical band

18
Q

noise we use for masking is at least __ critical band width-wide

A

1

19
Q

What method do we use for masking?

A

Plateau

20
Q

Results come from non-test ear; not enough masking

A

Undermasking

21
Q

Effective masking

A

Plateau

22
Q

Too much noise that it’s making it to the test ear

A

Overmasking

23
Q

We present masking in the non-test ear at __ dB above the non-test ear AC threshold

A

10

24
Q

What are other terms for immittance audiometry?

A

Tympanometry, acoustic admittance, impedance audiometry

25
Q

Tests how well the conductive system moves

A

Immittance audiometry

26
Q

Puffing air into the ear canal to see if the tympanic membrane moves

A

Pneumatic otoscopy

27
Q

Net opposition of flow of energy

A

Impedance

28
Q

What 2 things create impedance?

A

Resistance, Mass reactance and stiffness

29
Q

How do we measure compliance?

A

Place sound source at ear to see if tympanic membrane moves

30
Q

What does it mean when there is a lot of sound reflecting back from the tympanic membrane?

A

High stiffness, high impedance, less compliant ear is

SLP 309 (18 decks)

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