What is Communication?
Why is human communication special?
• Sensitive to the state of the receiver
Precursors to Language
- pointing or other similar movements
What is Language?
Intricate system of sounds or gestured symbols that people use to communicate with each other
Generativity
Using a relatively small number of linguistic components and rules, we can create an infinite number of expressions
Natural language
• Nearly all children acquire a language that way
Phonetics & Phonology
Learning about the sound system of a language
Semantics
Learning about expressing meaning (e.g., word learning)
Syntax
Learning the rules that determine how words go together in a sentence
Pragmatics
Learning how language is used in social context
4 Components of Language
Phonetics/Phonology, semantics, syntax, pragmatics
Drive to Create Language
When children are raised in an environment with no language, they will create their own communication
system
• Children who are deaf and who are not exposed to American sign language will create gestures to communicate with their family
Language in fetuses
How do we know what words children can understand?
Head-turn preference procedure
Language comprehension at 5 months
Infants prefer listening to a recording of their own name than a stress-matched word
Language comprehension at 6 months
Language comprehension at 8 months
Infants demonstrate understanding of basic phrases
Language comprehension at 10 months
Infants have a receptive vocabulary of from 11 to 154 words
Production of language from 0 to 6 months
0 to 2 months: Reflexive vocalizations
2 to 3 months: Cooing
4 to 6 months: Experimenting with their voice
Production of language 6-10 months
Babbling • Canonical babbling • Babbling with real syllables • Reduplicated babbling• (mamama) • Variegated babbling• (bamananapapa)
Gestures
8- to 12-months • First gestures • Holding something up • Pointing • Declarative • Imperative 12-months • Iconic gestures
First words
12 months • On average, babies say first word - usually first words are nouns • 18 months • Around 50 words • Holophrases • Bottle! • Hug!
First Words and Gestures
Children will combine gestures and words
• Gesture is linked to later language production
• The more a child gestures early, the more words they produce later
Putting Words Together
12 months: Speaking first words
• 18 months: Putting two or three words together