Treatment generalization from trained /ɹ/ to untrained /l/: a case study of persisting distortion errors
| Autor: | Megan C. Leece, Jonathan L. Preston, Tara McAllister, Caitlin Raaz |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Linguistics and Language
medicine.medical_specialty medicine.medical_treatment Audiology Biofeedback Speech Sound Disorder Article 050105 experimental psychology Language and Linguistics 030507 speech-language pathology & audiology 03 medical and health sciences Speech and Hearing Speech Production Measurement Phonetics Distortion Generalization (learning) otorhinolaryngologic diseases medicine Humans Speech 0501 psychology and cognitive sciences Child Perceptual training Ultrasonography 05 social sciences American English Contrast (statistics) United States 0305 other medical science Psychology |
| Zdroj: | Clin Linguist Phon |
| ISSN: | 1464-5076 0269-9206 |
| Popis: | The extent to which treatment of speech errors that are phonetic in nature (i.e., distortions) produces generalization to untrained sounds is not well understood. This case study reports a child referred for treatment of a velarized distortion of American English /ɹ/, who also demonstrated an inconsistent velarized distortion of /l/. Acoustic analysis revealed evidence of a covert contrast between /ɹ/ and /l/ prior to treatment. Ultrasound biofeedback treatment and perceptual training targeted /ɹ/ only, but progress was tracked for both /ɹ/ and /l/. Substantial improvements in perceptually rated accuracy and significant changes in acoustic features were observed for both sounds, indicating generalization. These results highlight that generalization from trained to untrained sounds is possible for children with residual speech errors characterized by phonetic distortions. |
| Databáze: | OpenAIRE |
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