Heritage Speakers’ Phonological Memory: Beyond Sub-Lexical Level of Sound Perception
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This study investigated Korean heritage speakers’ phonological knowledge compared with L2 learners and native controls. The results of a picture-word discrimination task using three alveolar stop sounds /t/, /th/ and /t’/ in Korean revealed radical differences between heritage speakers and L2 learners compared with native controls: heritage speakers’ phonemic sensitivity to distinguish the three stop sounds was as robust as native speakers’ even at the early stages of general oral proficiency whereas L2 learners’ increased steadily as their general oral proficiency improved. In addition, heritage speakers’ high performance was consistent regardless of conditions (e.g., tal for the image of ‘the moon’ in Match condition vs. thal or ttal in Mismatch condition) whereas L2 learners showed significantly lower accuracy rates in Mismatch condition, indicating they failed in rejecting mismatched stop sounds. Based on the results, we suggest that adult acquisition of phonology in heritage language is a process of retrieving and strengthening old phonological memories, which is different from encoding new sound memories in the case of typical adult second language learning.
Abstract
This study investigated Korean heritage speakers’ phonological knowledge compared with L2 learners and native controls. The results of a picture-word discrimination task using three alveolar stop sounds /t/, /th/ and /t’/ in Korean revealed radical differences between heritage speakers and L2 learners compared with native controls: heritage speakers’ phonemic sensitivity to distinguish the three stop sounds was as robust as native speakers’ even at the early stages of general oral proficiency whereas L2 learners’ increased steadily as their general oral proficiency improved. In addition, heritage speakers’ high performance was consistent regardless of conditions (e.g., tal for the image of ‘the moon’ in Match condition vs. thal or ttal in Mismatch condition) whereas L2 learners showed significantly lower accuracy rates in Mismatch condition, indicating they failed in rejecting mismatched stop sounds. Based on the results, we suggest that adult acquisition of phonology in heritage language is a process of retrieving and strengthening old phonological memories, which is different from encoding new sound memories in the case of typical adult second language learning.
참고문헌 (37)
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