HDFS 2113 Lecture Notes - Lecture 7: Language Acquisition Device, Frontal Lobe, Vocabulary Development

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Language - Chapter 5 Cont.
Defining Language
Language form of communication
o Spoken, written, or signed
o Based on a system of symbols
o Consists of the words used by a community and the rules for varying and
combining them
Infinite generativity ability to produce an endless number of meaningful sentences
using finite set of words and rules
How language develops
Recognizing language sounds
Babbling and other vocalizations
o Crying
o Cooing
o Babbling
o Keep in mind that these will appear at different ages for different children
Gestures
o Showing and pointing
First words
o Receptive vocabulary considerably exceeds spoken vocabulary
o Vocabulary spurt
o Overextension - Tendency to apply a word to objects that are inappropriate
for the word’s meaning
o Underextension - Tendency to apply a word too narrowly
Two-word utterances
o To convey meaning child relies on:
Gesture, tone, and context
o Telegraphic speech - Use of short and precise words without grammatical
markers:
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