Chapter 11: Deaf or HOH Flashcards

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1
Q

Physiological definition for Deaf + HoH

A

Deaf = cannot hear 90db or higher.

HoH = cannot hear below 90db

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2
Q

Educational definition of Deaf + HoH

A

Deaf = Cannot hear, with or without a hearing aid

HoH = Needs a hearing aid.

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3
Q

Congenitally Deaf

A

= deaf from birth

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4
Q

Prelingual deaf

A

= deaf post-birth

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5
Q

Hearing Threshhold (with Decibles):

Mild

Moderate

Mod-Severe

Severe

Profound

A

Mild 26-40db

Moderate 41-55db

Mod-Severe 56-70db

Severe 71-90db

Profound 91db

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6
Q

Prevalence of hearing impairment of school age children

A

0.10%

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7
Q

When is sound normally painful?

A

125 db +

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8
Q

Audiometric Zero

A

The lowest level at which a person with normal hearing can perceive sound.

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9
Q

Hertz

  • What is it?
  • What frequencies can we hear?
  • What hz is speech?
A
  • The pitch of vibration (1 hz = 1 second cycle)
  • We hear range 20-20,000hz
  • Speech is approx. 500-2000hz
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10
Q

Otacoustic Emissions

A

-To determine how well the cochlea is functioning

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11
Q

Pure Tone Audiometry

  • What is it
  • What does it find
A
  • Establishes a person’s threshhold for hearing different hz
  • Pure tone threshold = softest sound must be audible at least 50% of the time
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12
Q

What is the hearing process?

A

The transformation of acoustic energy into mechanical energy, into neural energy

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13
Q

Where is the choclea? (inner/middle/outer ear)

A

Inner Ear

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14
Q

Conductive Hearing Impairment

A

-Loss that interferes with the transer of sound along the middle/outer ear’s conductive pathway

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15
Q

What is ensorineural Hearing Impairment

A
  • Loss from the inner ear

- More serious

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16
Q

3 components of Sign Languages?

A
  1. Hand shape
  2. Body Location
  3. Movement attached
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17
Q

IQ vs Academic Achievement of children with hearing impairment?

A

Normal IQ, but significantly worse academic achievement.

*Exception = deaf children coming from deaf homes.

18
Q

6 Features of (D)eaf culture

A
  1. Linguistic differentiation
  2. Attitudinal deafness
  3. Behavioral norms
  4. Endogamous marriage patterns
  5. Historical awareness
  6. Voluntary organizational networks
19
Q

Deaf Activism: 3 current examples

A
  1. Gallaudet Experience
  2. Cochlear Implant debate
  3. Genetic Engineering Debate
20
Q

Total Communication method of Education for HoH/ Deaf Children?

A
  • Combo of oral and manual

- However is different than ASL and can be slow and awkward so decreasing in popularity

21
Q

How many deaf children having hearing parents?

A

95%

22
Q

What % of deaf parents give birth to hearing children?

A

90%

23
Q

Where is the auricle and what is its purpose?

A

It is the protruding portion of the outer ear that collects and funnels sound

24
Q

The outer ear consists of the ________ and ____________

A

Auricle; external auditory canal

25
Q

The symphonic membrane is another term for the ___________

A

eardrum

the boundary between outer and middle ear

26
Q

The 3 ossicles of the middle ear are _____, _____, and _______

A

Malleus (hammer), incus (anvil), stapes (stirrup)

27
Q

The _______ is the link between the middle and inner ear

A

Oval window

28
Q

What are the 2 functional divisions of the inner ear?

A

Vestibular mechanism - responsible for sense of balance

Cochlea - concerns mechanical action into electrical signal for hearing

29
Q

What is the 1-3-6 rule?

A

It is the screening times for babies - If babies have signs of hearing impairment they move to the next screening phase (1, 3, and 6 months)

30
Q

What are the 3 main classifications of hearing impairment causes?

A

Conductive hearing impairment
Sensorineural hearing impairment
Mixed hearing impairment

31
Q

What is otitis media?

A

A middle ear infection that 80% of children are diagnosis with before the age of 10

32
Q

_____________ gene mutation is the common common cause of congenital deafness

A

connexin-26

33
Q

_______________ is the most frequent non genetic cause of deafness in children

A

Congenital cytomegalovirus (CMV) - a herpes virus

34
Q

children who use sign language are able to reach the same developmental milestones as children who hear do but in SL

True or False

A

True - they also do it at about the same time

35
Q

The _______ side of the brain is responsible for language acquisition as well as SL acquisition

A

Left

36
Q

Deaf children who have deaf parents have higher academic achievement

True or False

A

True

37
Q

Which 2 factors influence whether or not deaf students are isolated?

A

Inclusion - whether or not they have strategic grouping during school

Hearing status of parents - Deaf parents are likely to have their children socialized with other deaf people from an early age

38
Q

___________ debate is the controversy over whether the goal of instructions would be to teach deaf children to speak or to teach them SL

A

oralism-manualism debate

39
Q

What is the difference between the auditory-verbal approach and the auditory-oral approach?

A

A-V Approach focuses on audition to improve speech language- attempts to rely on residual hearing

A-O Approach also stresses the use of visual cues such as speechreading or cued speech

40
Q

What type of hearing aid is worn for the most severe hearing impairments?

A

Behind the ear

41
Q

hearing aids make distorted sounds more clear

True or False

A

False - they can only make sounds louder