1
Reflexive and non reflexive
What are the 2 major categories of infant vocalizations?
3 days
What is, an infant as young as this can discriminate their mothers voice from other females
Infants sound productions are commonly referred to as..
What is prelinguistic vocalizations?
Infant vocal productions in which a series of consonant vowel syllables are repeated for example mama papa baba begin at 7 months of age
What is reduplicated babbling?
Human speech
What is what infants have a greater interest in, compared to other sounds?
An operant conditioning method of studying speech discrimination in infants by measuring their sucking rates when various sounds and syllables are presented and sucking responses positively reinforced.
What is high amplitude sucking method?
1. Phonation 2. primitive artic. 3. Expansion 4. cononical babbling
What are the 4 infraphon. stages?
An operant conditioning method of studying infant speech perception by reinforcing a head turn response to new or changed sound or syllable presentation
What is visually reinforced head turn method?
36 Months
Infant vocalizing that typically begins at about 9 months of age; characterized by the production of vowel, cv, and some cvc syllable combinations with varying consonants and vowels from one syllable to another
What is Variegated babbling?
Stages of early infant vocalizations observed prior to cononical babbbling
What is what do the infraphonological stages represent?
The phonetic repertoire and syllable structure of the productions of the late babbling period
What are the first true words a child produces influence by?
High-amplitude sucking method and visually reinforced head turn method
What is what 2 methods have been used to study speech infant perception?
Shows that infants as young as a few days can be conditioned to discriminate certain speech sounds
What does high amplitude sucking method and visually reinforced head turn method results show?
What are protowords?
Automatic responses produced by an infant that reflect his or hr physical state including crying, burping, coughing, and hiccuping
What is reflexive vocalizations?
Words that have an advanced pronunciation in comparison to the child's current skills
What are progressive idioms?
The child's static or unchanging pronunciations of certain words despite having more advanced phonological skills
What are regressive idioms?
What have several cross-sectional studies documented?
Infant vocal productions that aren't reflexive in nature including; cooing vocal play, marginal babbling, reduplicated babbling, variegated babbling, coughing and hiccuping
What is non reflexive vocalizations?
One of the four basic speech processes; the production of voice through vocal fold vibration
What is phonation?
3-8 months
Vocal play and exploration during infraphonological stage 3
What is expansion?
1-4 months
New sounds in the form of squeels and growls appear and coos and goos appear
What is primitive articulation?
5-10 months
Infant vocalizations that include adult like sounds and syllables includes reduplicated and variegated babbling
What is cononical babbling?
Babbling and the onset of speech
What are now considered a continuous process with no break, infants babble only a small set of sounds and babble certain sounds more frequently than others?