Baseline Stimulability Predicts Patterns of Response to Traditional and Ultrasound Biofeedback Treatment for Residual Speech Sound Disorder
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| Title: | Baseline Stimulability Predicts Patterns of Response to Traditional and Ultrasound Biofeedback Treatment for Residual Speech Sound Disorder |
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| Language: | English |
| Authors: | McAllister, Tara (ORCID |
| Source: | Journal of Speech, Language, and Hearing Research. Aug 2022 65(8):2860-2880. |
| Availability: | American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org |
| Peer Reviewed: | Y |
| Page Count: | 21 |
| Publication Date: | 2022 |
| Sponsoring Agency: | National Institute on Deafness and Other Communication Disorders (NIDCD) (DHHS/NIH) |
| Contract Number: | R01DC013668 F31DC018197 R01DC017476 |
| Document Type: | Journal Articles Reports - Research |
| Descriptors: | Speech Therapy, Speech Impairments, Voice Disorders, Predictor Variables, Biofeedback, Outcomes of Treatment, Intervention, Accuracy, Acoustics, Measurement, Comparative Analysis, Auditory Perception, Scores, Articulation (Speech), Speech Tests, Verbal Ability, Intelligence Tests, Vocabulary, Language Tests, Phonology, Language Processing, Children, Adolescents |
| Geographic Terms: | New York (New York) |
| Assessment and Survey Identifiers: | Goldman Fristoe Test of Articulation, Peabody Picture Vocabulary Test, Clinical Evaluation of Language Fundamentals |
| DOI: | 10.1044/2022_JSLHR-22-00161 |
| ISSN: | 1092-4388 1558-9102 |
| Abstract: | Purpose: This study aimed to identify predictors of response to treatment for residual speech sound disorder (RSSD) affecting English rhotics. Progress was tracked during an initial phase of traditional motor-based treatment and a longer phase of treatment incorporating ultrasound biofeedback. Based on previous literature, we focused on baseline stimulability and sensory acuity as predictors of interest. Method: Thirty-three individuals aged 9-15 years with residual distortions of [voiced alveolar approximant] received a course of individual intervention comprising 1 week of intensive traditional treatment and 9 weeks of ultrasound biofeedback treatment. Stimulability for [voiced alveolar approximant] was probed prior to treatment, after the traditional treatment phase, and after the end of all treatment. Accuracy of [voiced alveolar approximant] production in each probe was assessed with an acoustic measure: normalized third formant (F3)-second formant (F2) distance. Model-based clustering analysis was applied to these acoustic measures to identify different average trajectories of progress over the course of treatment. The resulting clusters were compared with respect to acuity in auditory and somatosensory domains. Results: All but four individuals were judged to exhibit a clinically significant response to the combined course of treatment. Two major clusters were identified. The "low stimulability" cluster was characterized by very low accuracy at baseline, minimal response to traditional treatment, and strong response to ultrasound biofeedback. The "high stimulability" group was more accurate at baseline and made significant gains in both traditional and ultrasound biofeedback phases of treatment. The clusters did not differ with respect to sensory acuity. Conclusions: This research accords with clinical intuition in finding that individuals who are more stimulable at baseline are more likely to respond to traditional intervention, whereas less stimulable individuals may derive greater relative benefit from biofeedback. |
| Abstractor: | As Provided |
| Entry Date: | 2023 |
| Accession Number: | EJ1361204 |
| Database: | ERIC |
| Abstract: | Purpose: This study aimed to identify predictors of response to treatment for residual speech sound disorder (RSSD) affecting English rhotics. Progress was tracked during an initial phase of traditional motor-based treatment and a longer phase of treatment incorporating ultrasound biofeedback. Based on previous literature, we focused on baseline stimulability and sensory acuity as predictors of interest. Method: Thirty-three individuals aged 9-15 years with residual distortions of [voiced alveolar approximant] received a course of individual intervention comprising 1 week of intensive traditional treatment and 9 weeks of ultrasound biofeedback treatment. Stimulability for [voiced alveolar approximant] was probed prior to treatment, after the traditional treatment phase, and after the end of all treatment. Accuracy of [voiced alveolar approximant] production in each probe was assessed with an acoustic measure: normalized third formant (F3)-second formant (F2) distance. Model-based clustering analysis was applied to these acoustic measures to identify different average trajectories of progress over the course of treatment. The resulting clusters were compared with respect to acuity in auditory and somatosensory domains. Results: All but four individuals were judged to exhibit a clinically significant response to the combined course of treatment. Two major clusters were identified. The "low stimulability" cluster was characterized by very low accuracy at baseline, minimal response to traditional treatment, and strong response to ultrasound biofeedback. The "high stimulability" group was more accurate at baseline and made significant gains in both traditional and ultrasound biofeedback phases of treatment. The clusters did not differ with respect to sensory acuity. Conclusions: This research accords with clinical intuition in finding that individuals who are more stimulable at baseline are more likely to respond to traditional intervention, whereas less stimulable individuals may derive greater relative benefit from biofeedback. |
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| ISSN: | 1092-4388 1558-9102 |
| DOI: | 10.1044/2022_JSLHR-22-00161 |
