English

Vegetative stage

cooing stage

babbling stage

proto-words stage

Holophrastic Stage

Two-Word Stage

Telegraphic Stage

Post-Telegraphic Stage

Noam Chomsky

Vocal Chords
Phonemic Expansion
Phonemic Contraction

Alan Cruttenden (1974)

Consonant Sounds

Vowels

Dipthong

Age - 2 years

Age 2 and a half years

Age - 3 years

Age 3 and a half

Age - 4 years+

Plosives

Fricatives

Affricatives

Approximants

Laterals

Nasals

Types of phonological mistake

Deletion

Substitution

Addition

Assimilation

Reduplication

Consonant cluster reductions

Deletion of unstressed syllables

Jean Berko and Roger Brown (1960's)

Proto-words

Rate of lexical development
How many words at 12 months?
How many words at 24 months?
How many words at 36 months?

Content words

Function words

Katherine Nelson 1973
Four categories for first words

Katherine Nelson (1973)

B.F. Skinner

Overextension

Underextension

Eve Clarke

Leslie Rescorla - Types of overextensions
Categorical Overestension

Leslie Rescorla - Types of overextensions
Analogical overextension

Leslie Rescorla - Types of overextensions
Mismatch statements

Jean Aitchisons stages of linguistic development
1 - Labelling

Jean Aitchisons stages of linguistic development
2 - Packaging

Jean Aitchisons stages of linguistic development
3 - Network Building

Network Building
Hyponymy
Hypernym
Hyponym

Jean Piaget

Jean Piaget's stages of children's linguistic development
Sensorimotor

Jean Piaget's stages of children's linguistic development
Pre-Operational

Jean Piaget's stages of children's linguistic development
Concrete Operational

Jean Piaget's stages of children's linguistic development
Formal Operational

Eve Clarke

Syntax

Morphology

Mean Length Utterance - MLU

Stages of children's grammatical development
One Word/ Holophrastic

Stages of children's grammatical development
Two-word

Stages of children's grammatical development
Telegraphic

Stages of children's grammatical development
Post-Telegraphic

Noam Chomsky

One Word/ Holophrastic stage

Two word stage

Types of meaning relations in two-word utterances
Agent + action

Types of meaning relations in two-word utterances
Agent + affected

Types of meaning relations in two-word utterances
Entity + attribute

Types of meaning relations in two-word utterances
Action + affected

Types of meaning relations in two-word utterances
Action + location

Types of meaning relations in two-word utterances
Entity + location

Types of meaning relations in two-word utterances
Possessor + possession

Types of meaning relations in two-word utterances
Nomination

Types of meaning relations in two-word utterances
Recurrence

Types of meaning relations in two-word utterances
Negation

Telegraphic stage