Exam 2 Flashcards
(161 cards)
Assessment
to distinguish normal from disordered speech for diagnostic purposes
treatment
to appropriately select target phonemes for therapy
appropriate use of norms in clinical decision making
individual differences may exist
norms based on 75-90% master of a normed group
age of mastery may vary across studies
some approaches address LATER developing sounds before targeting EARLIER developing sounds
norms should just be used as one “piece of the puzzle”
newborns prefer their ____________ voice over other voices
mother’s
newborns prefer their ____________ languages over foreign languages
ambient
sensitivity to ambient language _________
prosodic patterns
language-universal
infants discriminate phonetic contrasts of all languages
prelinguistic stage-speech perception
BIRTH: language- universal
language-specific perception for vowels
detection of typical stress patterns in words
decline in foreign-language consonant perception
12 MONTHS: increase in native-language consonant perception
speech perception within the first year of life
infants appear to learn how to selectively perceive only the contrasts in their language and lose the ability to perceive other contrasts
by the time they are only a year old. infants perceive only the categories that are
contrastive in the language they’ve grown up with
babbling is
NOT random
consonant-like sounds that are babbled are restricted to a
small set of segments
transition from babbling to 1st words is
CONTINUOUS
Stark’s Classification for Prelinguistic Development
five levels
stages are not distinct; they overlap
ages for each level should be considered approximate
birth - 2 months
STAGE 1
Reflexive crying and vegetative sounds
STAGE 1
reflexive vocalization: cries, coughs, grunts, and burps
STAGE 1
vegetative sounds: grunts, tongue clicks, and other noise associated with feeding
STAGE 1
speech-like sounds are rare
STAGE 1
cooing and laughter or controlled phonation
STAGE 2
1-4 months
STAGE 2
vowel-like sounds with some consonantal elements (back of the mouth)
STAGE 2
Quasi-resonant nuclei: syllabic nasal consonant or nasalized vowel sound like
STAGE 2
most primitive vegetative sounds start to disappear
STAGE 2