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Infancy
Language Development
Language
• Language is defined as the systematic, meaningful
arrangement of symbols, which provides the basis for
communication.
Vocabulary
• By the age of 15 months, an average child vocabulary
is of 10 words and is methodologically expanding.
• Between 16 and 24 months of age, there is an
explosion of language in which child’s vocabulary
typically increases from 50 to 400 words.
• The increase in vocabulary that comes around 18
months is accompanied by linking together of
individual words into sentences that convey a single
thought.
Basic young infant sounds
• Cooing, crying, gurgling & murmuring.
• These sounds though meaningless, play an
important role in linguistic development.
Pre-linguistic Communication
• A communication through sounds, facial
expressions, gestures, imitations and other non-
linguistic means.
• Babbling refers to making speech like but
meaningless sounds.
• Starts at 3 months and continues until the age
of one year.
• Verbal and gestural babbling
Holophrases Telegraphic Speech
One word utterances that stand for a
whole phrase, whose meaning depends on
the particular context in which they are
used.
Speech in which words not critical to the
message are left out.
For example: - Mama, kitty etc. For example: - I want keys
Under-extension Over-extension
The overly restrictive use of words,
common among children just mastering
spoken language.
The overly broad use of words,
overgeneralizing their meaning.
Blanket example- ‘blankie’ Motor vehicles example
Referential Style Expressive Style
A style of language use in which language
is used primarily to label objects.
A style of language use in which language
is used primarily to express feelings and
needs about oneself and other.
US mothers Japanese mothers
Language as an innate skill
• Nativist approach to language: - The theory
that a genetically determined, innate
mechanism directs language development.
• Universal Grammar:- Noam Chomsky’s theory
that all the world’s languages share a similar
underlying structure.
Language Acquisition Device
• Also abbreviated as LAD
• LAD is considered a neural system of the brain,
hypothesized to permit a formal understanding
of language.
• It helps in understanding language structure
and provides a set of strategies and techniques
for learning the particular characteristics of
language to which the child is exposed.
Video Link
• https://youtu.be/AhnhELWYPi8

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Lecture 5 Language Development in Infancy.pptx

  • 2. Language • Language is defined as the systematic, meaningful arrangement of symbols, which provides the basis for communication.
  • 3. Vocabulary • By the age of 15 months, an average child vocabulary is of 10 words and is methodologically expanding. • Between 16 and 24 months of age, there is an explosion of language in which child’s vocabulary typically increases from 50 to 400 words. • The increase in vocabulary that comes around 18 months is accompanied by linking together of individual words into sentences that convey a single thought.
  • 4. Basic young infant sounds • Cooing, crying, gurgling & murmuring. • These sounds though meaningless, play an important role in linguistic development.
  • 5. Pre-linguistic Communication • A communication through sounds, facial expressions, gestures, imitations and other non- linguistic means. • Babbling refers to making speech like but meaningless sounds. • Starts at 3 months and continues until the age of one year.
  • 6. • Verbal and gestural babbling
  • 7. Holophrases Telegraphic Speech One word utterances that stand for a whole phrase, whose meaning depends on the particular context in which they are used. Speech in which words not critical to the message are left out. For example: - Mama, kitty etc. For example: - I want keys
  • 8. Under-extension Over-extension The overly restrictive use of words, common among children just mastering spoken language. The overly broad use of words, overgeneralizing their meaning. Blanket example- ‘blankie’ Motor vehicles example
  • 9. Referential Style Expressive Style A style of language use in which language is used primarily to label objects. A style of language use in which language is used primarily to express feelings and needs about oneself and other. US mothers Japanese mothers
  • 10. Language as an innate skill • Nativist approach to language: - The theory that a genetically determined, innate mechanism directs language development. • Universal Grammar:- Noam Chomsky’s theory that all the world’s languages share a similar underlying structure.
  • 11. Language Acquisition Device • Also abbreviated as LAD • LAD is considered a neural system of the brain, hypothesized to permit a formal understanding of language. • It helps in understanding language structure and provides a set of strategies and techniques for learning the particular characteristics of language to which the child is exposed.