Speech Sound Disorders Flashcards
allophone
a nondistinctive phonetic variant for a phoneme (ex/ the /k/ is produced differently in ski, key, and caw, but is still /k/)
coarticulation
the influence of phonetic context on speech production
cognate
one of a pair of sounds that are different by just one phonetic feature (voicing in english) - ex/ s & z
flap
a modified stop, in which a rapid flapping motion of the tongue tip contacts the alveolar ridge (used for the /t/ and /d/ in words like city and ladder)
homorganic
sounds that have the same place of articulation (m and b)
eggressive sounds
formed from outflow airstream
ingressive sounds
formed from inflow airstream
obstruent
stops, fricative, and affricates b/c they have a complete, or narrow, constriction of the vocal tract
rhotacization
a sound that has /r/ coloring
sibilant
speech sound w/ intense, high-pitched noise (ex/ s and sh)
strident
a speech sound w/ intense frication noise like sibilants but also /f/ and /v/
Model - Behavioral Theory
the consequences of the infants’ vocalizations (i.e., reinforcement) is what’s necessary for them to learn language
criticism of behavioral theory
lack of data to support role of caretakers’ use of selective reinforcement of speech sounds for development
Model - Distinctive Features Theory
phonological development is realized as the development of feature contrasts, beginning w/ maximal contrasts (e.g., consonants vs. vowels, nasal consonants vs. oral consonants) and working up a hierarchy
- babbling not related to meaningful speech
Model - Generative Phonology
proposes 2 levels of language - surface level (what is spoken) and deep level (abstract representation of language) - underlying representations is used to talk about what children know about language and what they don’t know on a scale of 1-6, and how that affects their productions
- complex marking system
- clinically: describe errors in terms of phon rules often
Model - Natural Phonology
children are born with a set of “natural phonological processes” that reflect their developing speech motor systems - processes simplify production of speech sounds
- 3 broad categories of processes: syllable structure processes, substitution processes, assimilatory processes
- processes are reduced as kids develop