Lang Dis Child: Language Acquisition

Lecture 2

What is the developmental sequence of language acquisition?

Perlocutionary → Illocutionary → Locutionary → Word Combinations → Expanding Morphology → Complex Sentences/Narratives.

When do first words typically emerge?

Around 12-18 months

When do two-word combinations emerge?

Around 18-24 months

What happens during preschool years?

Rapid development of vocabulary, grammar, narratives, and cognition

What is mapping?

Linking a spoken word to an object, action, or concept

What is fast mapping?

First quick understanding of a new word after limited exposure.

What is slow mapping?

Building stronger understanding through repeated exposure.

What is extended mapping?

Full understanding of a word across different contexts

Fast Mapping → ? → ?

Slow Mapping → Extended Mapping

What is core vocabulary?

High-frequency words used across many situations. Examples: go, help, want, more.

What is fringe vocabulary?

Specific words related to interests or people. Examples: grandma, pizza, dinosaur.

Should intervention target only core vocabulary?

No. Both core and fringe vocabulary are important.

Which WH questions develop first?

What, Where, Who

Why does "When" develop later?

It requires understanding time concepts.

Why does "How" develop later?

It requires procedural and sequential thinking.

WH Question Order?

What → Where → Who → Whose → Why → How/How Many → When

Which develops first: -ing or -ed?

-ing develops first

Example of present progressive.

I am running.

Example of regular past tense.

Jumped

Example of third person singular.

She plays

Social play sequence?

Unoccupied → Solitary → Spectator → Parallel → Associative → Cooperative.

Object play sequence?

Exploratory → Relational → Functional → Symbolic

What is symbolic play?

Pretend play. Example: feeding a doll

What is a heap narrative?

A collection of details with little organization

What develops after heap narratives?

Primitive/chain narratives with sequence and story structure

Story grammar elements?

Setting, Initiating Event, Internal Response, Plan, Attempt, Consequence, Resolution.

Expressive language can exceed what?

Receptive language