Development of language Flashcards
Protoconversations
interaction between adult and baby using that includes words sounds and gestures that attempts to convey meaning before the onset of language
Why do babies respond to infant directed speech?
slower pace and exaggerated voice changes provide infant with more noticeable language cues, helps infants perceive sounds that are fundamental to language
infant phonology perception
phonemes are basic building blocks of speech sounds, infants can distinguish many of these sounds as early as 1 month after birth. Infants are prepared for language, partly because of brain readiness and also because of auditory experience in uterus
Prelinguistic development
- Reflexive vocalization (ex crying, coughing)
- Cooing, laughing
- Vocal play (testing vocal organs, range of loudness and pitch)
- Reduplicated babbling (sounds like words but not meaningful)
- Variagated babbling (vary consonants ex. ba ga pa)
- Jargon (sounds like speaking own language)
Holophrastic stage of development
one word stage
Telegraphic stage
sentences containing just enough info to make sense, usually 2 to 4 words. During this stage (starting at around 18-24 months) language explosion happens. Once infant reaches 50 words vocab begins to build rapidly 50-100+ words per month
First word period
happens around 1st birthday, phonological and semantic ability closely related, first words types include substantive (name objects), social words, relational words (bye bye, no mine)
Gesture use
Begin using gestures shortly before 1st birthday, gestures convey message just as well as words and often pave way for oral language
Hart and Risley study
children living in professional families had more words spoken than welfare kids
Fast mapping
process of rapidly learning new words simply from contrastive use of familiar and unfamiliar word
overextension
use given word in broader context than appropriate (ex. Ball for ballooon, egg, apple, marble)
underextension
using a word too narrowly (using “cat” for only the family cat)
relationship with literacy and word learning
kids with stronger vocab have easier time reading
expressive syntax begins
17 months
free morpheme
word that can stand alone (ex Book)