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Language Acquisition : The process of human to absorb and get the
knowledge of their language. Nonverbal Communication
: It means the way of communication other than words. It can be the way how human
utter the words, feature, environment which affect a communication, object with
influence personal images and interaction patterns. Wood, 2009: 13.
Tactile Sign Language : A sign language which is commonly used
by deaf-blind people to communicate with each other. This sign language is practiced
by using hand contact. Tadoma
: Method of speech-reading which based on vibrotactile reception of the lips movement
that occur when producing speech.
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CHAPTER II REVIEW OF RELATED LITERATURE
2.1. Related Theories 2.1.1. Language Acquisition
When human was born, he is not born talking. So, he needs to acquire his own language especially his first language Clark, 2009:1. To
get it, human must pass some processes called language acquisition. Chomsky stated that language acquisition is one of process which he
learner forms an internalized knowledge in his mind. Or, it is the process which learn about a human process through which he can acquire
language, both first language and second language acquisition. Language acquisition theories generally were divided into two
general theories, Nativism and Behavior theory. Nativism theory or innateness theory belongs to Noam Chomsky. This theory argued that
language acquisition device is innately inside children themselves. All human born with a Language Acquisition Device in their brain which
supports them to have language. Innately, they have a set of ability for knowing structures and patterns of language, it called as Universal
Grammar. So, human has innate mechanism which a language is genetically programmed in their brain. Chomsky argues that language
acquisition holds some linguistic knowledge in human at birth and human also has automatic grammatizator.
