Abstract
Objectives: The research aims to investigate the application of feature-based phonology into intervention for phonological-based speech sound disorder (SSD) in Cantonese using a single-case study.
Method: A preschool boy with phonological-based SSD was recruited. In the initial assessment, consistent phonological processes of initial consonant deletion, final consonant deletion, diphthong reduction, as well as fronting, deaspiration, deaffrication, delabialization and stopping of initial consonants were observed in the boy’s speech. Analysis using feature-based phonology indicated that the [continuant] and [spread-glottis] features were missing in the boy's inventory. In addition, it is further hypothesised that the processes of final consonant deletion and diphthong reduction indicated either an unmarked coda segment in the boy’s syllable structure representation or delinked [consonantal] and [sonorant] features with the coda at the segmental level. Initial consonants /f/ and /h/ were selected as treatment targets to establish the [continuant] and [spread glottis] features. For the coda position, the consonant /ng/ which carries both [consonantal] and [sonorant] features was selected. A total of 15 weekly treatment sessions with balanced production-based and perceptual (minimal pair discrimination and identification) training will be implemented starting from mid February 2023. Pre- and post-treatment phonetic inventory of the boy will be analyzed based on single word articulation test results and language samples collected using narratives and conversation tasks.
Expected results and Discussion:
It is expected that direct treatment effect of correct productions of /f/, /h/ and /-ng/ will be resulted. In addition, it is expected that generalisation to initial consonants /s/ (sharing with /f/ the [continuant] feature) and aspirated plosives /ph/ and /th/ (sharing with /h/ the [spread-glottis] feature) are expected. Besides, generalisation to all final consonants (sharing with /ng/ the [consonantal] feature) and all diphthongs (sharing with /ng/ the [sonorant] feature at the coda position]) is also expected. Finally, generalization to initial consonants /k/ and /kh/ (both sharing the [velar] position feature with /ng/) is also anticipated.
Method: A preschool boy with phonological-based SSD was recruited. In the initial assessment, consistent phonological processes of initial consonant deletion, final consonant deletion, diphthong reduction, as well as fronting, deaspiration, deaffrication, delabialization and stopping of initial consonants were observed in the boy’s speech. Analysis using feature-based phonology indicated that the [continuant] and [spread-glottis] features were missing in the boy's inventory. In addition, it is further hypothesised that the processes of final consonant deletion and diphthong reduction indicated either an unmarked coda segment in the boy’s syllable structure representation or delinked [consonantal] and [sonorant] features with the coda at the segmental level. Initial consonants /f/ and /h/ were selected as treatment targets to establish the [continuant] and [spread glottis] features. For the coda position, the consonant /ng/ which carries both [consonantal] and [sonorant] features was selected. A total of 15 weekly treatment sessions with balanced production-based and perceptual (minimal pair discrimination and identification) training will be implemented starting from mid February 2023. Pre- and post-treatment phonetic inventory of the boy will be analyzed based on single word articulation test results and language samples collected using narratives and conversation tasks.
Expected results and Discussion:
It is expected that direct treatment effect of correct productions of /f/, /h/ and /-ng/ will be resulted. In addition, it is expected that generalisation to initial consonants /s/ (sharing with /f/ the [continuant] feature) and aspirated plosives /ph/ and /th/ (sharing with /h/ the [spread-glottis] feature) are expected. Besides, generalisation to all final consonants (sharing with /ng/ the [consonantal] feature) and all diphthongs (sharing with /ng/ the [sonorant] feature at the coda position]) is also expected. Finally, generalization to initial consonants /k/ and /kh/ (both sharing the [velar] position feature with /ng/) is also anticipated.
| Original language | English |
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| Publication status | Not published / presented only - Jul 2023 |
| Event | 19th International Clinical Phonetics and Linguistics Association Conference - Salzburg, Austria Duration: 4 Jul 2023 → 7 Jul 2023 |
Conference
| Conference | 19th International Clinical Phonetics and Linguistics Association Conference |
|---|---|
| Country/Territory | Austria |
| City | Salzburg |
| Period | 4/07/23 → 7/07/23 |