| Autor: |
Overby MS; Department of Speech-Language Pathology, Duquesne University, Pittsburgh, PA, USA., Moorer LL; Department of Communication Sciences and Disorders, Texas Woman's University, Denton, TX, USA., Belardi K; Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, PA, USA., Schreiber J; School of Nursing, Duquesne University, Pittsburgh, PA, USA. |
| Jazyk: |
angličtina |
| Zdroj: |
International journal of speech-language pathology [Int J Speech Lang Pathol] 2020 Apr; Vol. 22 (2), pp. 196-205. Date of Electronic Publication: 2019 Aug 05. |
| DOI: |
10.1080/17549507.2019.1645884 |
| Abstrakt: |
Purpose: Although lateralisation errors (LEs) are a common speech sound disorder, no studies have examined their early development. The purpose of this exploratory small-scale investigation was to compare the early (birth-24 months) speech sound development between children later diagnosed with LEs and typically developing children. Method: This was a between-group case-controlled design with six monolingual English-speaking participants. Participants were White, non-Hispanic girls with at least one college-educated parent. As children, three had been diagnosed with lateralisation speech sound errors and three demonstrated typical speech sound development. Participants' parents provided home video-recordings of the participants as infants/toddlers between birth and age 2. These videos were then analysed for the amount, type and diversity of sounds, and canonical babbling onset. Result: There was no statistically significant between-group difference in the volubility (i.e. combined frequency of non-resonant and resonant utterances) or in the age at which [s] or [z] emerged. However, infants/toddlers who were later diagnosed with LEs showed reduced frequency/minute in production of resonant utterances and consonants (including [s, z]), used fewer different consonants/minute, and used fewer syllable shapes/minute compared to typically developing infants/toddlers. At 7-12 months, none of the infants/toddlers later diagnosed with LEs, but all participants in the comparison group had reached the canonical babbling stage. Conclusion: Children who have LEs may have had a less robust speech sound system as infants/toddlers than their typically developing peers. However, these findings must be considered with caution due to the significant limitations of this investigation. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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