Language
system for communications w/ others using signals combined according to grammar rules to convey meaning
Grammar
set of rules that specify how the units of language are combined to produce meaningful messages
Phonemes
smallest unit of recognizable sound
Phonological rules
rules of how phonemes can be combined to make speech sounds
Morphemes
Smallest meaningful units of language
Morphological Rules
how morphemes are combined to form words
-content/ function morphemes
Content Morphemes
things/events
Function Morphemes
time/grammar
Syntactical Rules
how rules can be combined to form phrases/ sentences
Deep Structure
meaning of a sentence
Surface Structure
how sentence is worded
Theories of language development
Behaviourist, Nativist, Interactionist
Behaviourist
learn to talk through reinforcement, shaping, extinction, imitation
Nativist
- evidence to suggest language capacities are built in brain
Interactions
-initiate ability to acquire language coupled with social interactions
Characteristics of Language development
Language milestones
0 - 60 months
0-4 months
can tell diff btwn speech sounds
4-6 months
babbles
6-10 months
Understands some words and simple requests
10-12 months
Begins to use single words
12-18 months
Vocab of 30-50 words
18-24 months
24-36 months
- phrases but not sentences