Linguistics is defined as the scientific study of language. From different viewpoints, as a science, linguistics can be divided into several branches, among others, descriptive linguistics and historical/comparative linguistics (if it is based its methodology), synchronic and diachronic linguistics
(if is based on its aspect of time), and phonetics, phonology, morphology, syntax and semantics (if it is based on a language as a system), and sociolinguistics and psycholinguistics (if it is related to or combined with the disciplines (sociology and psychology respectively).
Branches of Linguistics
Some branches of linguistics are as follows:
Phonetics
Phonology
Morphology
Syntax
Generative Transformational Grammar
Semantics
Pragmatics
Branches of linguistics in relation to the other fields of study:
Sociolinguistics
Psycholinguistics
The concepts of the braches of linguistics are presented as follows:
Phonetics is the study of speech sounds, which are known more technically as phones. This the study highlights, especially, how the speech sounds produced by using speech organs. It shows mechanisms of how to produce the speech sounds.
Phonology, on the other hand, is essentially the description of the systems and patterns of speech sounds in a language. It is, in effect, based on theory of what every speaker of a language unconsciously knows about the sound patterns of that language. This study regards the speech sounds as having functions to differentiate meanings.
Morphology is the study of analyzing the expression system of a language which is concerned with the identification of morphemes and the ways in which they are distributed or combined into longer utterances or morphological constructions.
Syntax is defined as the study on arrangements of words into phrases, clauses, and sentences or syntactical constructions. The smallest units of syntax are words.When two or more words are arranged in a certain way, the result refers to syntactical construction. In other other words, it can be said that a syntactical construction is a construction in which its immediate constituents (IC-a) are words (or free morphemes).
A grammar includes phrase-structure rules, lexical-insertion rules, and transformational rules. The grammar can be thought of as a machine which generates all the possible sentences of the language. A grammar containing such rules is called a generative grammar. When the rules include transformational rules, we have a transformational-generative grammar
A major factor in sentence interpretation involves a body of knowledge that is often called pragmatics. This includes the speaker’s and addressee’s background attitudes and beliefs, their understanding of the context in which a sentence is uttered, and their knowledge of the way in which language is used to communicate information
A term sociolinguistics is a derivational word. Two words that form it are sociology and linguistics. Sociology refers to a science of society; and linguistics refers to a science of language. A study of language from the perspective of society may be thought as linguistics plus sociology. Some investigators have found it to introduce a distinction between sociolinguistics and sociology of language. Some others regard sociolinguistics is often referred as the sociology of language.
The study that is concerned with the relationship between language and the context in which it is used. In other words, it studies the relationship between language and society. It explains we people speak differently in different social contexts. It discusses the social functions of language and the ways it is used to convey social meaning.
All of the topics provides a lot of information about the language works, as well as about the social relationships in a community, and the way people signal aspects of their social identity through their language (Jenet Holmes, 2001).
Sociolinguitics also refers to the study that is concerned with the interaction of language and setting (Carol M. Eastman, 1975; 113). The other expert defines it as the study that is concerned with investigating the relationship between language and society with the goal of a better understanding of the structure of language and of how languages function in communication ( Ronald Wardhaugh, 1986 : 12)
A term ‘psycholinguistics’ is a combination of psychology and linguistics. Both are the branches of sciences. Psychology is defined as the systematic study of human experience and behavior or as the science that studies the behavior of men and other animals Knight and Hilgert in Abu Ahmadi, 1992). There are several branches of psychology, among others, social psychology, psychology of communication, developmental psychology, educational psychology, and psychology of language.
The last branches of psychology is often called as psycholinguistics. It is defined as a field of study that combines psychology and linguistics. It covers language development. (Lim Kiat Boey). The other definition of psycholinguistics is that it is the study of human language –language comprehension, language production, and language acquisition (E.M. Hatch)