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KMID : 1036820130180030330
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Communication Sciences & Disorders
2013 Volume.18 No. 3 p.330 ~ p.340
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Development of Phonological Representation in Typically Developing Preschoolers
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Kim Na-Yeon
Kwon Sang-Nam
Jeong Il-Kwon
Meng Hyun-Su
Ha Ji-Wan
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Abstract
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Objectives: The purpose of this study was to examine the process of development of phonological representations and to determine what kinds of phonological information children use to develop accuracy in phonological representations in typically developing preschoolers.
Methods: Phonological representation judgment tasks (PR judgment task) were given to 54 children aged 4-6 years and their phonological representation abilities were examined in correct response scores and reaction time. To examine whether the subjects’ correct responses vary with manipulated phonological conditions, stimuli were manipulated in diverse methods considering various aspects, such as phonological units, segment positions in words and syllables, and distinctive features.
Results: The accuracy in the performance of PR judgment tasks increased, and reaction time was shortened with increasing age. These differences in the ability to perform the tasks were statistically significant between the four-year-old children group and the six-year-old children group. The ability to perform judgment was significantly better in conditions manipulated by syllable than by phoneme, in conditions manipulated by two phonemes than by one phoneme, and in conditions manipulated by syllable-initial consonants than by syllable-final consonants.
Conclusion: The results of this study indicate that phonological distinctiveness, that is, the quality of phonological representations is improved over time. When the results of children’s performance of PR judgment tasks under different manipulated stimuli are comprehensively considered, children are thought to develop accuracy in phonological representations based on acoustic-phonetic clarity of phoneme units.
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KEYWORD
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Phonological representation, Quality of phonological representation, Phonological representation judgment task, Acoustic-phonetic clarity hypothesis
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