Monday 21 January 2013

LANGUAGE DEVELOPMENT – CHILD LANGUAGE ACQUISITION

LANGUAGE DEVELOPMENT – CHILD LANGUAGE ACQUISITION

R.S.A.Susikaran., MA.,M.Phil.,(Ph.D)
Assistant Professor
Department of English
             Oxford Engineering College, Trichy,Tamil Nadu, South India.
   Email: susikaran.r.s.a.@gmail.com  
           Contact – 9600360192, +914312513101

   ABSTRACT
            Language development is the crucial part of the human cognitive nature, understanding language development is important aspect to understand the base and to recall its various components of linguistics. Language development is a process starting early in human life, when a person begins to acquire language by learning it as it is spoken and by mimicry. Scholars share the conviction that key aspects of personality and ability including linguistic and communication ability, are formulated in the earliest stages of life. But they are divided on the role of human intuition on one hand and heredity or environment has in childhood development of knowledge, aptitude and skill. Equally they are divided on how skills emerge and develop. A number of different theories have been advanced that are meant to explain language acquisition. This paper therefore examines the acquisition and theories based on the language development.
INTRODUCTION:
Language development is a process starting early in human life, when a person begins to acquire language by learning it as it is spoken and by mimicry. Since language development is the crucial part of the human cognitive nature, understanding language development is an important aspect to understand the base and to recall its various components of linguistics. And as to their universality, the cognitive aspect of communication in language is understood as similar among primates, non-primates, and human in some aspects, and differs in other aspects such as, predisposed communication, photographic utterances, language acquisition, and pragmatic components etc. The Purpose of this paper is to examine the role of biology and environment in language acquisition and theoretical approaches. This paper will present a brief overview of the subject of child language acquisition, will give four of the major theoretical outlines for the same, and will conclude the commentary on the differing views of language acquisition.
Biological Preconditions:
Linguists do not agree on the biological factors contributing to language development; however most do agree that the ability to acquire such a complicated system is unique to the human species. Furthermore, many believe that our ability to learn spoken language may have been developed through the evolutionary process and that the foundation for language may be passed down genetically. 
Some evidence that language is biological includes:
  • There are proven areas of the brain that are responsible for language production and comprehension (Broca’s Area and Wernicke’s Area).
  • During brain lateralization, there seems to be a sensitive period for speech production.
Environmental Influences
The behavioral view of language development is no longer considered a viable explanation of how children acquire language, yet a great deal of research describes ways in which children’s environmental experiences influence their language skills. One component of the young child’s linguistic environment is (child – directed speech) also known as baby talk or mothers, which is language spoken in a higher pitch than normal with simple words and sentences. Although the importance of its role in developing language has been debated many linguists argue it to have the important function of capturing the infant’s attention and maintaining communication. Adults use strategies other than child-directed speech like, recasting, expanding and labeling. Recasting is rephrasing something the child has said, perhaps turning it into a question or restating the Child’s immature utterance in the form of a fully grammatical sentence. Expanding is the restating, in a linguistically sophisticated form, what a child has said. Labeling is identifying the names of objects.
Social Preconditions
It is crucial that children are allowed to socially interact with other people who can vocalize and respond to questions for language acquisition to develop successfully, it must be in an environment that allows them to communicate socially in that language.
The two most accepted theories in language are psychological and functional Psychological explanations focus on the mental processes involved in language learning.
There are four main components of language:
v  Phonology involves the rules about the structure and sequence of speech sounds.
v  Semantics consists of vocabulary and how concepts are expressed through words.
v  Grammar involves two parts. The first syntax is the rules in which words are arranged in to sentences. The second, morphology is the use of grammatical markers (indicating tense, active or passive voice, etc.)
v  Pragmatics Involves the rules for appropriate and effective communication. Pragmatics involves three skills:-
(i)                 Sing language for greeting, demanding etc.
(ii)               Hanging language for talking differently depending on who it is you are talking to.
(iii)             Following rules such as turn taking, staying on topic.
v Each component has its own appropriate developmental period.
Phonological Development:
            From shortly after birth to around one year, the baby starts to make speech sounds. At around two months, the baby will engage in cooing, which mostly consists of vowel sounds. At around four months, cooing turns into babbling which is the repetitive consonant-vowel combination. Babies understand more than they are able to say.
            From 1-2 years, babies can recognize the correct pronunciation of familiar words. By 3-5 years, phonological awareness continues to improve as well as pronunciation. By 6-10 years, children can master syllable stress patterns which helps distinguish slight differences between similar words.
Semantic Development:
            From birth to one year, comprehension (the language we understand) develops before production (the language we use). There is about a 5 month lag in between the two. Babies have an innate preference to listen to their mother’s voice. Babies can recognize familiar words and use preverbal gestures. 
From 1-2 years, vocabulary grows to several hundred words. By 3-5 years children usually have difficulty using words correctly. From 6-10 years, children can understand meanings of words based on their definitions.
Grammatical Development
From 1-2 years, children start using telegraphic speech, which are two word combinations. Brown (1973) observed that 75% of children’s two word utterances could be summarized in the existence of 11 semantic relations.
Eleven important early semantic relations and examples based on Brown 1973:
·         Attributive          : “ Big house” 
·         Agent –Action   : “Daddy Hit”
·         Action – Object : “Hit Ball”
·         Agent – Object  : “Daddy Ball”
·         Nominative         : “That Ball”
·         Demonstrative     : “There Ball”
·         Recurrence          : “more ball”
·         Non- existence     : “All-gone ball”
·         Possessive            : “Daddy Chair”
·         Entity + Locative   : “Book  table”
·         Action + Locative  : “Go store”
At around 3 years, children engage in simple sentences, which are 3 word sentences. Grammatical morphemes added as there simple sentences start to emerge. By 3-5 years, children continue to add grammatical morphemes and gradually produce complex grammatical structures. By 6-10 years, children refine the complex grammatical structures such as passive voice.
Pragmatics Development
From birth to one year, babies can engage in joint attention. Babies also can engage in turn taking activities. By 1-2 years, they can engage in conversational turn taking and topic maintenance. At ages 3-5, children can master illocutionary intent, knowing what you meant to say even though you might not have said it and turn about, which is turning the conversation over to another person. By age 6-10, shading occurs, which is changing the conversation topic gradually. Children are able to communicate effectively in demand settings such as on the telephone.
Theoretical frame works of language development:
There are four major theories of language development.
            The behaviorist theory, proposed by B.F. skinner (father of behaviorism) say that language is learned through operant conditioning (reinforcement and imitation). This perspective sides with the nurture side of the nature-nurture debate. This perspective is not widely accepted today because there are many criticisms. These criticisms include that the perspective is too specific, encourages incorrect phrases and is not entirely possible.
The nativist theory, proposed by Noam Chomsky, says that language is a unique human accomplishment. Chomsky says that all children have what is called an LAD, an innate language Acquisition device that allows children to produce consistent sentences once vocabulary is learned. He also says that grammar is universal. This theory, while there is much evidence supporting it, is not believed by all researchers.
The Empiricist theory argues that here is enough information in the linguistic input that children receive, and therefore there is no need to assume an innate language acquisition device (LAD). This approach is characterized by the construction of computational models that learn aspects of language and/ or that simulate the type of linguistic output produced by children.
The last theory, the interactions perspective, consists of two components. This perspective is a combination of both the nativist and behaviorist theories. The first part, the information- processing theories, tests through the connectionist model, using statistics. From these theories, we see that the brain is excellent at detecting patterns.
The second part of the integrationist perspective is the social-integrationist theories. These theories suggest that there is a native desire to understand others as well as being understood by others.       
Conclusion
There is no longer any doubt among linguists and child psychologists that language acquisition is an elaborate and completely monolithic type of study. Under the rubric of civilization and more directly under the context of societal development, language is one of the most important aspects of culture. There is a basic dispute over the subject of child language acquisition which exposes a nerve between the nature versus nurture controversy. In its most basic form, the initiates, led by linguist Noam Chomsky, believe that children are biologically programmed for languages. In this view, the way a child learns to speak is more a function of the genetic makeup and ethnic heritage.
In opposition, the social integrationists maintain that language is acquired from cues in the environment given by parents, peers and other members of society. In fact the very nature of this approach necessitates that a social interaction take place between the child and some other person that has already mastered some of the basic constructs of language. Theoretically there is also ample basis for a well-defined sequential bias for semantic relations within early language acquisition.
References
·          Berk, L.E (2006) Chapter 9 – Language Development in Child Development (8th ed.,  pp.356-395). Pearson (original work published 1989).
·          Brown, Roger.(1973) A First language: The Early Stages. Cambridge, Mass: Harvard University Press,
·          Gray, W.D & Schunn, C.D (eds) 2002, Proceedings of the Twenty-Fourth Annual Conference of the Cognitive Science Society, Lawren Erbaum Associates. NJ.
·          Santrock, J (2008). A topical Approach to Life-span Development. New York, NY: Mc Graw- hill Higher Education.


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