Jane Chandlee and Jeffrey Heinz
Computational phonology studies the nature of the computations necessary and sufficient for characterizing phonological knowledge. As a field it is informed by the theories of computation and phonology.
The computational nature of phonological knowledge is important because at a fundamental level it is about the psychological nature of memory as it pertains to phonological knowledge. Different types of phonological knowledge can be characterized as computational problems, and the solutions to these problems reveal their computational nature. In contrast to syntactic knowledge, there is clear evidence that phonological knowledge is computationally bounded to the so-called regular classes of sets and relations. These classes have multiple mathematical characterizations in terms of logic, automata, and algebra with significant implications for the nature of memory. In fact, there is evidence that phonological knowledge is bounded by particular subregular classes, with more restrictive logical, automata-theoretic, and algebraic characterizations, and thus by weaker models of memory.
Howard Lasnik and Terje Lohndal
This is an advance summary of a forthcoming article in the Oxford Research Encyclopedia of Linguistics. Please check back later for the full article.
Noam Avram Chomsky is one of the central figures of modern linguistics. He was born in Philadelphia on December 7, 1928. In 1945, Chomsky enrolled in the University of Pennsylvania, where he met Zellig Harris (1909–1992), a leading Structuralist, through their shared political interests. His first encounter with Harris’ work was when he proof-read Harris’ book Methods in Structural Linguistics, published in 1951 but already completed in 1947. Chomsky grew dissatisfied with Structuralism and started to develop his own major idea that syntax in part is a matter of abstract representations. This was soon combined with a psychobiological view of language as a unique part of the mind/brain.
Chomsky spent 1951–1955 as a Junior Fellow of the Harvard Society of Fellows, after which he joined the faculty at MIT, under the sponsorship of Morris Halle. He was promoted to full professor of Foreign Languages and Linguistics in 1961, appointed Ferrari Ward Professor of Linguistics in 1966, and Institute Professor in 1976. As of 2016, Chomsky is still remarkably active, publishing, teaching, and lecturing across the world.
In 1967, both the University of Chicago and the University of London awarded him honorary degrees, and since then he has been the recipient of scores of honors and awards. In 1988, he was awarded the Kyoto Prize in basic science, created in 1984 in order to recognize work in areas not included among the Nobel Prizes. These honors are all a testimony to Chomsky’s influence and impact in linguistics and cognitive science more generally over the past sixty years. His contributions have, of course, been heavily criticized, but nevertheless remain crucial to investigations of language.
Chomsky’s work has always centered on the same basic questions and assumptions, especially that human language is an inherent property of the human mind. The technical part of his research has continuously been revised and updated. In the 1960s phrase structure, grammars were developed into what is known as the Standard Theory, which transformed into the Extended Standard Theory and X-bar theory in the 1970s. A major transition happened at the end of the 1970s, when the Principles and Parameters Theory emerged. This theory provides a new understanding of the grammar, focusing on the invariant principles common to all human languages, and the points of variation known as parameters. Its recent variant, the Minimalist Program, pushes the approach even further in asking why grammars are structured the way they are.
Chiyuki Ito and Michael J. Kenstowicz
Typologically, pitch-accent languages stand between stress languages like Spanish and tone languages like Shona, and share properties of both. In a stress language, typically just one syllable per word is accented and bears the major stress (cf. Spanish sábana ‘sheet,’ sabána ‘plain,’ panamá ‘Panama’). In a tone language, the number of distinctions grows geometrically with the size of the word. So in Shona, which contrasts high versus low tone, trisyllabic words have eight possible pitch patterns. In a canonical pitch-accent language such as Japanese, just one syllable (or mora) per word is singled out as distinctive, as in Spanish. Each syllable in the word is assigned a high or low tone (as in Shona); however, this assignment is predictable based on the location of the accented syllable.
The Korean dialects spoken in the southeast Kyengsang and northeast Hamkyeng regions retain the pitch-accent distinctions that developed by the period of Middle Korean (15th–16th centuries). For example, in Hamkyeng a three-syllable word can have one of four possible pitch patterns, which are assigned by rules that refer to the accented syllable. The accented syllable has a high tone, and following syllables have low tones. Then the high tone of the accented syllable spreads up to the initial syllable, which is low. Thus, /MUcike/ ‘rainbow’ is realized as high-low-low, /aCImi/ ‘aunt’ is realized as low-high-low, and /menaRI/ ‘parsley’ is realized as low-high-high. An atonic word such as /cintallɛ/ ‘azalea’ has the same low-high-high pitch pattern as ‘parsley’ when realized alone. But the two types are distinguished when combined with a particle such as /MAN/ ‘only’ that bears an underlying accent: /menaRI+MAN/ ‘only parsely’ is realized as low-high-high-low while /cintallɛ+MAN/ ‘only azelea’ is realized as low-high-high-high. This difference can be explained by saying that the underlying accent on the particle is deleted if the stem bears an accent. The result is that only one syllable per word may bear an accent (similar to Spanish). On the other hand, since the accent is realized with pitch distinctions, tonal assimilation rules are prevalent in pitch-accent languages.
This article begins with a description of the Middle Korean pitch-accent system and its evolution into the modern dialects, with a focus on Kyengsang. Alternative synchronic analyses of the accentual alternations that arise when a stem is combined with inflectional particles are then considered. The discussion proceeds to the phonetic realization of the contrasting accents, their realizations in compounds and phrases, and the adaptation of loanwords. The final sections treat the lexical restructuring and variable distribution of the pitch accents and their emergence from predictable word-final accent in an earlier stage of Proto-Korean.