Audilogy Terms Flashcards

1
Q

What happens from week 4 to 8 gestation?

A

3 germ layers grow and develop landmarks which later develop into organs

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2
Q

What are the three layers called?

A

ectoderm
medoderm
endoderm

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3
Q

ectoderm

A

create the central and peripheral nervous system. Including the inner ear.

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4
Q

Mesoderm

A

Heavily involved in bone ,cartilage, muscles

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5
Q

endoderm

A

epithelia membranes of the digestive and respiratory system.

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6
Q

When is ear development complete?

A

20th week of gestation.

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7
Q

How long does the external ear continue to mature for?

A

age 9

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8
Q

Neuroplasticity

A
  • brain’s ability to reorganize itself.
  • Forms new connections and pathways in response to sensory and motor input.
  • Learning new skills or in creating new memories upon which to build additional behaviors.
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9
Q

Critical periods

A

first 2 or 3 years of life

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10
Q

Moro reflex

A

hear, arm and whole body startle reflex

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11
Q

Aural palpebral response

A

eye blink

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12
Q

Apgar score

A

At birth the newborn is graded for how sick or healthy he/she is at 1 minute and again at 5 minutes.

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13
Q

Atresia

A

a completely filled in or closed external ear canal

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14
Q

Exostoses

A

multiple bony growths

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15
Q

Osteomas

A

single bony growth

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16
Q

Serous OM:

A

OM with fluid (effusion) that is clear and without pus or blood.

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17
Q

Adhesive OM

A

usually the result of chronic long term OM with a sticky effusion. Fibroblasts or fibers in it.

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18
Q

Tympanosclerosis

A

Shiny white deposits of hyalinized or calcified scar tissue.

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19
Q

Cholesteatoma

A

leave a little pocket in this outer layer and the dead cells fall into it causing a skin filled cyst to grow into the middle ear.

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20
Q

Childhood Infections that can cause hearing loss.

A

Meningitis:

Viral Diseases

21
Q

Auditory Neuropathy Spectrum Disorder

A

may show normal hearing to pure tones or only a mild to moderate loss while having great difficulty understanding speech.

similar to CAPD

22
Q

What age do you use behavioral observation?

A

0-6months

23
Q

What do you look for with behavioral observation

A

moro reflexes, aural, or any response

24
Q

What age do you use Visual Reinforcement Audiometry?

A

6 months-2years

25
Q

How does Visual Reinforcement Audiometry work?

A
  • Condition child to turn his/her head to the right when a sound is presented from that side and to the left when coming from the left side.
  • After the child is considered “conditioned” in that he/she consistently looks right and left, testing can commence.
  • randomly choose right or left and reduce the stimulus in 10 or 15dB steps.
26
Q

What age do you use conditioned play audiomtery?

A

2-4 yearrs

27
Q

2 types of speech audiomtery

A

SAT

SRT

28
Q

SAT

A

awareness

29
Q

SRT

A

understanding

30
Q

Typanametry

A

measures the reflected sound under various air pressure placed on the outside of the eardrum.

31
Q

Acoustic Reflex Thresholds

A

measures presence or absence of reflexes

32
Q

Otoacoustic Emissions

A

measures sounds that come out of the ear from the inner ear.

33
Q

Sensitivity

A

failing those who should fail

34
Q

Specificity

A

passing those who should pass

35
Q

False Positives

A

How often does the test identify normal hearers as being hearing impaired?

36
Q

False Negatives (FN)

A

How often does the test falsely identify a hearing impaired child as being normal?

37
Q

incidence

A

frequency of new outbreaks

38
Q

What does JCIH reccomend ?

A

all infants should be screened using a physiologic test rather than a behavioral hearing test prior to 1 month of age.

39
Q

Hearing aid styles

A

BTE

ITE

40
Q

Which hearing aid style is besst for children?

A

BTE

41
Q

What have probe microphone measurements done?

A

moved hearing aid fitting from art to science

42
Q

What is validation?

A

the check of how child is doing with hearing aid

43
Q

Forms of validation

A

Hearing threshold across frequencies
Most comfortable level (MCL)
uncomfortable loudness level
maximum output of hearing aid

44
Q

Minimum age reccomendation of cochlear implants?

A

12 months

45
Q

Educational Goals for the Child with Hearing Loss

A
  1. limited language skills

2. poor reading

46
Q

AUDITORY-ORAL & AUDITORY VERBAL METHODS

A

rely on strict use of audition.

47
Q

Educational methodologies

A
auditory-oral and auditory verbal methods
visual oral
speech reading
ASL
TC
Cued speech
48
Q

Auditory Neuropathy Spectrum Disorder

A

characterized by normal hair cell function and absent or abnormal nerve function t