Generativity
Finite number of parts, infinite possibilities for combination and expression
Symbol system
Allows us to represent and communicate ideas and feelings to others
Case study: Nacaraguan Sign language
Before 1970’s Nicaragua had no deaf community, when the deaf children were brought together in one school for the first time…
THEY CREATED THEIR OWN LANGUAGE WOOO
What’s required for language making?
Language is localized in the _____, with localization increasing over development
Brain
Language is species specific
Only humans acquire language in the course of typical development
Language is species universal
In typical development all humans acquire language
Early language development depends upon _____ to language
Exposure
Newborns show preference for listening to _____ over other sounds
Speech
Infant directed speech (IDS)
Exaggerated style of speech we use when speaking to language
Pitch patterns
IDS has sweeping changes between high and low pitch
Hyperarticulation
IDS has expanded acoustic distance between vowels, helps learners tell the difference
There is more/less vowel articulation in speech to infants, pets, and adults
More!
Components of language from smallest to largest (4)
Phonemes
The elementary units of any spoken language
Across all languages there are around _____ phonemes, within any single language, only a ____ is used
200
Subset
McGurk effect
Hearing different words depending on the mouth movement you see
First vocalizations for babies begin at around ___-___ weeks — making drawn out and varied vowel sounds
6-8
Early practice with producing speech sounds helps the baby
Babbling begins at around ___-___ months — strings of repeated “bits” of language
6-10
Babies babble in their _____ language
Native! — They take the rounds, rhythms, and patterns of intonation of the language around them
Manual babbling
Native-signing infants produce repetitive hand movements that are smaller components of full signs
Who shows greater vocabulary development — first born babies or babies with siblings
First borns! They have more enrichment from the adults