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Revitalizing Endangered Languages

Edited by Justyna Olko & Julia Sallabank

Revitalizing Endangered Languages "This guidebook provides ideas and strategies, as well as some background, to help with the effective revitalization of endangered languages. It covers a broad scope of themes including effective planning, benefits, wellbeing, economic aspects, attitudes and ideologies."



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Dissertation Information


Title: The Effect of Age of Acquisition and Second Language Experience on Segments and Prosody: A cross-sectional study of Korean Bilinguals' English and Korean production Add Dissertation
Author: Grace Oh Update Dissertation
Email: click here to access email
Institution: University of Oregon, Graduate Institute Center for Spoken Language Understanding
Completed in: 2011
Linguistic Subfield(s): Language Acquisition;
Subject Language(s): Korean
Director(s): Vsevolod Kapatsinski
Melissa Redford
Kaori Idemaru
Susan Anderson

Abstract: The dissertation investigated segmental and prosodic aspects of first -
(L1) and second language (L2) speech production. Forty Korean-speaking
adults and children varying in L2 experience (6 months - inexperienced vs.
6 years - experienced) as well as twenty age-matched native English
speaking adults and children participated. Experienced children born in the
U.S. were first exposed to English much earlier than inexperienced
children. Group differences were investigated for insight into the effect
of differing language experience on speech production.

For segmental aspects, spectral quality and duration of English and Korean
vowels (Chapter Ⅱ), the effect of English coda consonant voicing on vowel
and consonant closure duration (Chapter Ⅲ), and language-specific voice
onset time (VOT) in English and Korean stops (Chapter Ⅳ) were examined. All
Korean groups except the experienced children differed from the native
English speakers in vowel spectral quality and coda voicing production. The
experienced children showed native-like production of both English and
Korean vowels and also used VOT to distinguish Korean aspirated and English
voiceless stops. These results suggest that the experienced children have
separate phonological representations for their two languages.

For prosodic aspects, stressed and unstressed vowels in English
multisyllabic words (Chapter Ⅴ) and Korean four-syllable phrases (Chapter
Ⅵ) were elicited. The results of stressed and unstressed vowel production
revealed that the Korean adults were able to acquire English prosody in a
native-like manner, except for reduced vowel quality. Contrary to the
little L1-L2 interaction in prosody for adults, Korean experienced
children's production suggested a strong influence of English acquisition
on the development of Korean prosody in terms of fundamental frequency,
intensity, and duration patterns.

Different degrees of L1-L2 interaction between Korean experienced
children's production of segments and prosody are discussed from the
developmental standpoint of simultaneous bilingual children's language
shift from the mother tongue to English. In addition to children's greater
plasticity of language acquisition, external (e.g., peer pressure, language
input) and internal (e.g., ethnic self-identity) factors are likely to have
created a language learning environment different from that of the Korean
adults. As a result, the degree and direction of L1-L2 interaction varied
by linguistic domains, depending on the age of the learner and the language
experience.