The ongoing tonogenetic sound change in Seoul Korean involves transphonologization in phrase initial position, where the fundamental frequency (F0) of the vowel following aspirated or lenis stops becomes associated with the aspirated-lenis stop contrast (phonologization), while the originally contrastive Voice Onset Time (VOT) values merge…

Individual speakers' speech patterns differ from one another, despite presumably similar language input. What are the sources of this individual variability? In this dissertation, I explore sources of individual differences in pronunciation of coronal obstruents (/s/, /t[superscript h]/, /c[superscript h]/, /c/) at the ends of nouns in Korean.…

The Perceptual Assimilation Model (PAM) (Best, 1995) claims listeners directly perceive articulatory gestures of the vocal tract rather than acoustic/auditory signals. Accordingly, the articulatory similarities and discrepancies between native and non-native sounds determine the perceptual assimilation patterns of non-native sounds. This study…

The current study examines second dialect acquisition of North Korean refugees living in Seoul. A total of 14478 stops were measured from each of 22 Pyongyang North Korean standard (NK) and Seoul South Korean (SK) speakers. First, stops of NK and SK have been directly compared to each other by measuring VOT, F0, and H1-H2. In addition to providing…

This study examined Korean learners' production of intervocalic English biconsonantal clusters consisting of /p/, /t/, /k/, /m/, /n/, or /[eng] / followed by /l/ or /[voiced alveolar approximant]/. The results of the production experiment showed several factors influencing Korean learners' production. First, Korean learners' production was…

This dissertation investigates the pathways and causes of the development of glide deletion in Seoul Korean. Seoul provides fertile ground for studies of linguistic innovation in an urban setting since it has seen rapid historical, social and demographic changes in the twentieth century. The phenomenon under investigation is the variable deletion…

This study investigated the influence of L1 allophonic rule, L1 segment articulation, and gender in Korean learners' production of English /s/ in two different contexts (i.e., before a high front vowel vs. elsewhere) and at three different proficiency levels in English (i.e., low vs. intermediate vs. high). The influence of the Korean allophonic…

This article explores the teaching of an acceptable alternative articulation to correct the mispronunciation of the English /l/ sound by speakers of some Asian languages and dialects who struggle to differentiate the English liquids /r/ and /l/. Although teaching pronunciation, and especially segmentals, has generated controversy over whether…

Recent research reveals that pronunciation converges in verbal interaction (Babel, 2012), but this varies between speakers (Pardo, 2006). Based on dynamical principles I predict differences in bilinguals' accommodation towards English voice-onset-time (VOT). VOT is a phase relation between two articulatory gestures measuring the time between oral…

Research attempting to understand the intermediate stages of first-language acquisition and disordered speech has led to the discovery of covert contrast. A covert contrast is a statistically reliable difference between phonemes that is produced by a language learner, but in a way that cannot be heard readily by a listener of the target language.…

Palatalization refers to a type of coarticulation in which the place of articulation of some sound is closer to the palate than otherwise expected, very often triggered by adjacent palatal segments. It has been known as one of the most dynamic phonological phenomena in phonetic and phonological research, but the articulatory nature of…

This study investigated where the consonantal constrictions take place when Korean coronal obstruents are articulated since there is disagreement over the place of articulation of these consonants. Unlike other studies in Korean phonetics, which focus on various acoustic features, the current study used static palatography (SPG) in the form of…

This study investigates the acquisition of word-initial Korean obstruents (i.e. stops, affricates and fricatives). Korean obstruents are characterized by a three-way contrast among stops and affricates (i.e. fortis, aspirated and lenis) and a two-way fricative contrast (i.e. fortis and lenis). All these obstruents are voiceless word-initially.…

Links between perception and production were investigated for two adult native speakers of Korean who participated in electropalatographic (EPG) treatment designed to teach phonological and articulatory contrasts between English /s/ - /[esh]/, /z/ - /[voiced palato-alveolar affricate]/, and /l/ - /[alveolar approximant]/. Participants were…

We investigated how articulatory complexity at the phoneme level is manifested neurobiologically in an overt production task. fMRI images were acquired from young Korean-speaking adults as they pronounced bisyllabic pseudowords in which we manipulated phonological complexity defined in terms of vowel duration and instability (viz., COMPLEX:…