normal phonological development, speech sound learning and phonological processes, Flashcards

(54 cards)

1
Q

Infraphonological skills VS. Canonical babbling

A

Infraphonological skills – early infant vocalizations
(protophones)
VS.
 Canonical babbling – infant vocalizations
comprising of adult-like sounds and syllables.

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2
Q

Infraphonological stages
(prelinguistic)
Stage 1:

A

Stage 1: phonation (birth - 2 months)
 reflexive vocalizations: crying, fussing,
coughing, sneezing, burping.

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3
Q

Infraphonological stages
(prelinguistic)
Stage 2

A

Stage 2: Primitive articulation (1-4m)
 New sounds (squeals, growls, coos/goos)

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4
Q

Infraphonological stages
(prelinguistic)
Stage 3

A

Stage 3: Expansion (3-8 m)
 Period of vocal play and interaction

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5
Q

Infraphonological stages
(prelinguistic)
Stage 4

A

Stage 4: Canonical babbling (5-10m)
 Normal phonation, repetitive patterns
 Reduplicated and variegated babbling
 May produce stops, nasals, glides, lax
vowels

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6
Q

The integrative stage

A

Onset of speech - final stage in infant
speech development (Oller, 2000)
 may last up to 18 months
 first meaningful word
 Jargon
 Gibberish production
 At the end of this stage: infants combine
syllables/sounds and generate words

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7
Q

First Word:
vs Proto words:

A

Babbling transitions to First Words
 First Word: consistent phonetic form in a particular context that is recognized as an adult form.
 Proto words: consistent phonetic form in a particular context that is recognized as an adult form.

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8
Q

First Fifty Word Stage

A

the time from first meaningful utterance
(around 12 months) to the time when the
child begins to put two words together (18-
24 months)

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9
Q

Item Learning

A

during this time child
acquires word forms as unanalyzed units
rather than by contrasting phonemes

They are unaware of the contrasting phonemes

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10
Q

Holophrastic Period:

A

In this period they use one word or protoword to convey a complete idea

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11
Q

Phonetic variability

A

Trying out different production for different words— will say different.
Appropriate errors
The children present with an unstable pronunciation. They are trying different ways to phonate different sounds.

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12
Q

Limited Syllable Structures

A

They are using VC, CVC, CV
They cannot produce multisyllabic words
Bilabiales— firsts words
Fewer errors with vowels and consonants

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13
Q

Limited Sounds

A

Vowels [a] and [α] typically precede [i]
and [u].
 Consonants [p], [b] and [m] are among
the earliest.
 Individual Variation Exists
 Fewer Errors with Vowels than with
Consonants

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14
Q

Preschool Acquisition of sounds
Ages:

A

Ages: (Smit, Hand,Frellinger,
Bernthal & Bird, 1990)
 /m/ 3yrs
 /n/ 3-3 ½ yrs
 /p/ 3 yrs
 /b/ 3 yrs
 /k/ 3 ½ yrs
 /g/ 3 ½ -4 yrs
/f/ 3 ½ yrs (I), 51/2 yrs (F)
 /v/ 5 ½ yrs
 /θ/ 6-8 yrs
 /δ/ 4 ½ -7 yrs
 /s,z/ 7-9 yrs
 “sh” 6-7 yrs
 /l/ 5-6 yrs (I), 6-7 yrs (F)
 /r/ 8 yrs (“er” earlier than
initial l /r/)

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15
Q

Ages of acquisition cont.
 Lots of variability in

A

Lots of variability in norms, pg. 158, 161
 Table 4.3 (Smit et al.’s youngest group was
3 yrs and GFTA-2 was 2 yrs).
 Depends on mastery criterion (75%, 85%,
95%), sound position in words, gender
 Should be used as a reference, not as strict
guideline

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16
Q

Ages of acquisition cont.
 Earlier sounds vs. Later sounds:

A

Earlier sounds vs. Later sounds: earlier sounds
should be mastered earlier, not just produced
earlier (table 4.4 – p. 161)

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17
Q

Age ranges for consonant mastery

A

Early sounds(2-4 yrs) – p, b, m, n, h, d. t. k, g, f, w, ɧ
 Late sounds (5-7 yrs) - j, ʃ, ʧ, l, ʤ, s, r, v, z, ”th”
(voiceless and voiced)
 Disagreement: j and ɧ could be early or later

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18
Q

Clinical Implications

A

Developmental research provides
the ability to target earlier sounds
before later ones.
 Syllable structure limitations should
be taken into account when
structuring Treatment.

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19
Q

Phonological processes

A

are regularly occurring
simplifications of adult sound
productions that may affect classes
of sounds.

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20
Q

Phonological Processes
 Advantages

A

use information to target processes,
not just individual sounds
 Suppression of processes could help all
phonemes in a group, and in other
contexts

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21
Q

Phonological Processes
 Use of processes more common before

A

Use of processes more common before age
of 3, if lingering after 3 may not be typical
 Certain processes are more common in
normal speech (i.e., FCD) whereas others
are more atypical (i.e., ICD)
 More than one process can influence a
single word (e.g. stop→[dop] – cluster
substitution and prevocalic voicing)

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22
Q

Phonological processes

A

Errors that change the syllable structure
There are three types of phonological
processes:
 Syllable structure
 Substitution
 Assimilation

23
Q

Syllable Structure Processes
Reduplication

A

Partial or total repetition of a syllable on a word

24
Q

Syllable Structure Processes
Unstressed syllable deletion

A

Deleting the syllable that is not stressed

25
Syllable Structure Processes Cluster Reduction
Cluster can be deleted or substituted. Substitution : substitution in the cluster of one consonant for another. Deletion: deleting a consonant from the cluster reduction or deletion of the cluster. When there’s is a change to a cluster, it’s always cluster reduction. When there’s only one consonant and there’s is a change it’s either final or initial consonant delete because there’s only one constant. When it’s more than one consonant it’s a cluster reduction.
26
Syllable Structure Processes Final Consonant Deletion
Deleting the finals consonant. When there’s only one constant and not a cluster.
27
Syllable Structure Processes Initial Consonant Deletion:
Deleting the initial consonant. When there’s only one constant and not a cluster
28
Syllable Structure Processes Epenthesis
Inserting a vowel between a vowel a cluster or between two consonant. Usually it’s the shwa Or Adding a vowel to a word
29
Substitution Processes Stopping
Replacement of a fricative or affricate for a stop
30
Substitution Processes Fronting
Replacement of a velar sound for an alveolar sound.
31
Substitution Processes Gliding
Replacement of liquids with glides
32
Substitution Processes Depalatalization
when a palatal sound is replaced with a non-palatal sound Example: shoot  [su:t]
33
Substitution Processes Deaffrication
Replacement of affricates with a non affricate sound especially stops and fricatives Choose  [su:z]
34
Substitution Processes Backing
Replacement of alveolar (front) sounds with velar (back sound ) doll  [gɑl]
35
Substitution Processes Vocalization
Syllabic consonants L, M, N and R are replaced with a vowel. bottle /badə/; simple [simpə])
36
Substitution Processes
A simple sound substitution of one segment for another does NOT define a phonological process  Processes involve systematic sound changes that affect the classes of sounds or sound sequences. Example:
37
Assimilation Processes
Influence of a phoneme that makes the sound more similar to the surrounding phoneme. Processes that alter a consonant phoneme so that it becomes more similar to a surrounding phoneme.  It can affect sound’s manner of production, place or articulation, and voicing features.  Very common in young children  If persisting beyond 3yrs, may be indicator of phonological disorder (Grunwell, 1987)
38
Assimilation processes Velar
(e.g. duck → [g∧k]
39
Assimilation processes Nasal:
The word has a nasal sound and that sound makes a sound in a word become a nasal sound Nasal: (e.g. tin → [nIn]
40
Assimilation processes Labial:
The word has a labial sound and that sound makes a sound in a word become a labial sound Labial: (e.g table → [bebl]
41
 Assimilation processes Alveolar:
 Alveolar: (e.g. goat  [doʊt]
42
Assimilation processes Prevocalic voicing:
Assimilation to the voiced feature of the following vowel (e.g. pea  /di/)
43
Assimilation processes Postvocalic devoicing:
Postvocalic devoicing: (e.g. pig  [pIk])
44
Assimilation processes' Metathesis:
Metathesis: (e.g. boast  [boʊts]
45
Assimilation processes Coalescence:
Coalescence: (e.g. spoon [fun]: fricative feature from /s/ and labial feature from /p/ remain).
46
Assimilation processes Progressive:
Progressive: e.g. coat → [koʊk]
47
Assimilation processes Regressive
Regressive e.g. take → [keɪk]
48
Assimilation processes Full/Total:
Full/Total: e.g. bed →[bɛb]
49
Assimilation processes Partial:
Partial: e.g. bed → [bɛm]
50
Assimilation processes Contiguous
Contiguous: occurs within a cluster (adjacent sounds): boast  /boʊts/
51
Assimilation processes Noncontiguous
Noncontiguous: occurs between sounds separated by a vowel: bed/bɛm/
52
Ages of Suppression
Smit & Hand (1997)  Voicing 3 yrs  Assimilation 3yrs  FCD 3 yrs  Stopping 3 ½ yrs  Fronting 4 yrs  Cluster Reduction (w/o /s/) 4 yrs  Cluster Reduction (w/ /s/) 5 yrs  Weak syllable Deletion 5 yrs  Gliding 7 yrs
53
Speech intelligibility expectations
19-24 m: 25%-50% intelligible  2-3 yrs: 50%-75%  By 3 years of age - 75% of speech should be intelligible  By 5 years – most of speech should be intelligible to strangers (90- 100%)
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Factors related to speech sound learning
Abnormalities in the anatomic structures 2. Neurophysiological factors – dysarthria, Childhood Apraxia of Speech (CAS), cerebral palsy 3. Hearing loss Language skills – 40-80% of children with SSD may exhibit a language disorder 5. Intelligence – if not within norm 6. Tongue thrust – associated with articulation disorders