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ORIGINAL ARTICLE
Commun Sci Disord. 2003;8(2): 127-145.
Phonological Memory in the Nonword Repetition of Children: A Comparison of Functional Phonologically Disordered and Normal Children
Eun Ju Lee` , and Hyun Sub Sim`
Copyright ©2003 The Korean Academy of Speech-Language Pathology and Audiology
이은주(Eun Ju Lee)| 심현섭(Hyun Sub Sim)
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ABSTRACT
Phonological memory, which is a part of phonological processing, refers to the coding of information in a sound-based representation system for temporary storage. Two main variables in phonological memory were dealt with in the present study: (1) the word length effect, which asserts that long words are more poorly recalled because they take longer to articulate during rehearsal and (2) the phonological similarity effect, which means that the confusion between similar memory traces causes poorer recall of similar- sounding words. The purpose of the present study was as follows: (1) to determine whether the two groups show significant differences in nonword repetition performances at each syllable length(2 to 6), (2) to determine whether each group shows the word length effect, and (3) to determine whether each group shows the phonological similarity effect. Fifteen normal and 15 functional phonologically disordered four-year-old children participated in the present study. All children showed normal receptive linguistic and general intellectual ability. The experimental task was a nonword repetition task, consisting of a total of 40 nonwords ranging form two to six syllables in length(i.e., five sets of eight words, each set having a different length). Four of the eight words in each set are similar-sounding words, and the other four, dissimilar-sounding. The results can be summarized as follows: (1) children with functional phonological disorders displayed poorer nonword repetition performance than the normal children at each syllable length, (2) each group exhibited the word length effect, and (3) only the group of normal children revealed the phonological similarity effect. In conclusion, this study implies that phonological memory could be impaired despite the absence of accompanying receptive language disorders.
Keywords: 음운기억 | 무의미 음절 따라말하기 | 조음음운장애 | phonological memory | nonword repetition | functional phonological disorder
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