INFLUENCE OF NON-SPEECH ORAL MOTOR EXERCISE (NSOMES) THERAPY ON ARTICULATION SKILLS IN LEARNERS WITH DOWN SYNDROME IN MACHAKOS COUNTY, KENYA

Jecinta Kerubo, George Mathenge Wairungu

Abstract


Down Syndrome is a genetic condition caused by an extra copy of chromosome 21. This then makes the individual have 47 chromosomes instead of the typical 46. In most cases, individuals with the condition also have mild to moderate intellectual disability. Other conditions include low muscle tone and developmental delay. Children with Down Syndrome often experience delayed speech development and articulation difficulties. This necessitates specialized interventions by Speech-Language Pathologists (SLPs). While various speech therapy intervention techniques are employed, the effectiveness of Non-Speech Oral Motor Exercises (NSOMEs) in improving articulation remains debated and under-researched, particularly in low-resource settings. This study examined the influence of NSOMEs on articulation skills among children with Down Syndrome in selected primary schools in Machakos County, Kenya. The study was guided by Social Learning Theory and employed a mixed-methods approach. It combined a quasi-experimental design and descriptive qualitative analysis. A total of 26 participants were purposively selected, comprising 20 children with Down Syndrome (10 in the experimental group and 10 in the control group) and 6 speech-language pathologists. Data were collected through articulation pre- and post-tests (adapted from the GFTA-3 tool), in-depth interviews with SLPs. Quantitative data were analyzed using descriptive statistics and paired t-tests via SPSS, while qualitative data were processed through thematic analysis. Findings revealed that 90% of the children had below-average articulation scores at baseline, with the experimental group showing a significant mean gain of 26.2% after six weeks of NSOME intervention (p = 0.001), compared to a negligible improvement in the control group. Observational data supported these findings, with improvements noted in lip strength, tongue coordination, and speech clarity. Interviews with SLPs highlighted that NSOMEs are perceived as clinically beneficial, especially when integrated with other speech therapy techniques. The study concludes that NSOMEs are an effective early intervention strategy for improving articulation skills in children with Down Syndrome and recommends their integration into multimodal therapy programs.

Keywords


Down Syndrome, moderate intellectual disability, trisomy 21, low muscle tone, multimodal therapy

Full Text:

PDF

References


Ackerman, B., Lesko, C. R., Siddique, J., Susukida, R., & Stuart, E. A. (2021). Generalizing randomized trial findings to a target population using complex survey population data. Statistics in Medicine, 40(5), 1101-1120. https://doi.org/10.1002/sim.8822

Alhaidary, A. (2021). Treatment of speech sound disorders in children: Nonspeech oral exercises. International Journal of Pediatrics and Adolescent Medicine, 8(1), 1-4. https://doi.org/10.1016/j.ijpam.2019.07.008

Alighieri, C., Bettens, K., Bruneel, L., Vandormael, C., Musasizi, D., Ojok, I., ... & Van Lierde, K. (2019). Intensive speech therapy in Ugandan patients with cleft (lip and) palate: A pilot study assessing long-term effectiveness. International journal of pediatric otorhinolaryngology, 123, 156-167. https://doi.org/10.1016/j.ijporl.2019.05.007

Andrade, C. (2020). Sample size and its importance in research. Indian journal of psychological medicine, 42(1), 102-103. https://doi.org/10.4103/ijpsym.ijpsym_504_19

Arvedson, J., Clark, H., Lazarus, C., Schooling, T., Frymark, T. (2020). The effects of oral-motor exercises on swallowing in children: an evidence-based systematic review. Developmental Medicine and Child Neurology, 52(11), 1000-1013. https://doi.org/10.1111/j.1469-8749.2010.03707.x

ASHA, A. (2021). Speech sound disorders-articulation and phonology. In Speech Sound Disorders: Articulation and Phonology. Retrieved from https://www.asha.org/practice-portal/clinical-topics/articulation-and-phonology/

Azmat, R., Khan, M., Manzoor, T., Ibrahim, M., Sadia, T., & Safa, P. (2022). Prevalence of articulation disorder in school-going children between the ages of 8 to 12 years. International Journal of Rehabilitation Sciences, 3(1), 32-36. Retrieved from https://www.researchgate.net/publication/273493609_Prevalence_of_articulation_disorder_in_school_going_children_between_ages_of_8_to_12_years

Baigorri, M., Crowley, C. J., Sommer, C. L., Blackwell, A., Miranda, A. J., & Moya-Galé, G. (2022). Examining the prevalence of intervention approaches internationally: the use of nonspeech oral motor exercises in Guatemala. Perspectives of the ASHA Special Interest Groups, 7(4), 1203-1210. https://doi.org/10.1044/2022_PERSP-21-00285

Bandura, A. (2018). Social Learning Theory. Englewood Cliffs, NJ: Prentice-Hall. Retrieved from https://books.google.ro/books/about/Social_Learning_Theory.html?id=IXvuAAAAMAAJ&redir_esc=y

Bankson, N. W., & Bernthal, J. E. (2022). Articulation and phonological disorders. Pearson. Retrieved from https://books.google.ro/books/about/Articulation_and_Phonological_Disorders.html?id=OdQLAQAAMAAJ&redir_esc=y

Baskarada, S. (2023). Qualitative case study guidelines. The Qualitative Report, 19(40), 1-25. https://doi.org/10.46743/2160-3715/2014.1008

Botting, N., Faragher, B., Simkin, Z., Knox, E., & Conti-Ramsden, G. (2018). Predicting pathways of specific language impairment: What differentiates good and poor outcome?. The Journal of Child Psychology and Psychiatry and Allied Disciplines, 42(8), 1033-1020. https://doi.org/10.1111/1469-7610.00799

Bowen, C. (2023). Children's speech sound disorders. John Wiley & Sons. Retrieved from https://books.google.ro/books/about/Children_s_Speech_Sound_Disorders.html?id=kiLMEAAAQBAJ&redir_esc=y

Buckley, S. (1993). Language development in children with Down syndrome - Reasons for optimism. Down Syndrome Research and Practice, 1(1), 3-9. Retrieved from https://www.down-syndrome.org/en-gb/library/research-practice/01/1/language-development-down-syndrome-reasons-optimism/

Burgoyne, K., Duff, F., Snowling, M., Buckley, S. & Hulme, C. (2013). Training phoneme blending skills in children with Down syndrome. Child Language Teaching and Therapy 29(3) 273–290. Retrieved from https://adsa.org.nz/wp-content/uploads/2017/11/training-phoneme-blending.pdf

Clark H.M. (2023). Neuromuscular treatments for speech and swallowing: A tutorial. American Journal of Speech-Language Pathology, 12, 400–415. http://dx.doi.org/10.1044/1058-0360(2003/086)

Creswell, J. W., Hanson, W. E., Clark Plano, V. L., & Morales, A. (2017). Qualitative research designs: Selection and implementation. The counseling psychologist, 35(2), 236-264. Retrieved from https://journals.sagepub.com/doi/10.1177/0011000006287390

Cruz, J. (2023). Fostering Learning Strategies for ELLs Targeting Speech Language Error Articulation (Master's thesis, Greensboro College).

Dodd, B. (2019). Differential diagnosis of pediatric speech sound disorder. Current Developmental Disorders Reports, 1, 189-196. https://doi.org/10.1007/s40474-014-0017-3

Edmund Rice Foundation website. (2023). Edmund Rice Foundation (Australia). Retrieved from https://erf.org.au/about/

Enderby, P. (2020). Disorders of communication: dysarthria. Handbook of clinical neurology, 110, 273-281. https://doi.org/10.1016/b978-0-444-52901-5.00022-8

Erickson, G. S. (2019). Causal research design. In New Methods of Market Research and Analysis (pp. 78-105). Edward Elgar Publishing.

Erickson, T., Parham, R., & Whited, T. M. (2019). Fitting the errors-in-variables model using high-order cumulants and moments. The Stata Journal, 17(1), 116-129. https://doi.org/10.1177/1536867X1701700107

Farquharson, K., Tambyraja, S. R., & Justice, L. M. (2020). Contributions to gain in speech sound production accuracy for children with speech sound disorders: Exploring child and therapy factors. Language, Speech, and Hearing Services in Schools, 51(2), 457-468. https://doi.org/10.1044/2019_lshss-19-00079

Ford, J. A., & Ong, J. (2021). Non-medical use of prescription stimulants for academic purposes among college students: a test of social learning theory. Drug and alcohol dependence, 144, 279-282. https://doi.org/10.1016/j.drugalcdep.2014.09.011

Forrest, K. (2020). Are oral-motor exercises useful in the treatment of phonological/articulatory disorders?. In Seminars in Speech and Language (Vol. 23, No. 01, pp. 15-26). https://doi.org/10.1055/s-2002-23508

Franklin, A. D., Turner, C., Lindsay Nurse, K. T., & Arline, C. (2024). Productions of Goldman-Fristoe Test of Articulation–Third Edition Stimulus Words Among Teenage Speakers of Anguillian Eastern Caribbean English. Perspectives of the ASHA Special Interest Groups, 9(3), 779-794.

Garn-Nunn, P.G. (2019). Articulation Disorders. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, New York, NY. https://doi.org/10.1007/978-0-387-79948-3_865

Gliner, J. A., Morgan, G. A., & Leech, N. L. (2019). Randomized experimental and quasi-experimental designs. Research Methods in Applied Settings: An Integrated Approach to Design and Analysis, 55-72.

Goddard, W., & Melville, S. (2024). Research methodology: An introduction. Juta and Company Ltd. Retrieved from https://books.google.ro/books?id=bJQJpsU2a10C&printsec=copyright&redir_esc=y#v=onepage&q&f=false

Gomez, M., McCabe, P., & Purcell, A. (2022). A survey of the clinical management of childhood apraxia of speech in the United States and Canada. Journal of Communication Disorders, 96. Retrieved from https://doi.org/10.1016/j.jcomdis.2022.106193

Gracia, N., Rumbach, A. F., & Finch, E. (2020). A survey of speech-language pathology treatment for non-progressive dysarthria in Australia. Brain Impairment, 21(2), 173-190. Retrieved from https://www.cambridge.org/core/journals/brain-impairment/article/abs/survey-of-speechlanguage-pathology-treatment-for-nonprogressive-dysarthria-in-australia/B87098B2EED23A5B6256B3E7F0982B96

Graue, C. (2020). Qualitative data analysis. International Journal of Sales, Retailing & Marketing, 4(9), 5-14.

Green, H. E. (2019). Use of theoretical and conceptual frameworks in qualitative research. Nurse researcher, 21(6). https://doi.org/10.7748/nr.21.6.34.e1252

Greening, N. (2019). Phenomenological research methodology. Scientific Research Journal, 7(5), 88-92.

Greenwell, T., & Walsh, B. (2021). Evidence-Based Practice in Speech-Language Pathology: Where Are We Now?. American journal of speech-language pathology, 30(1), 186–198. https://doi.org/10.1044/2020_AJSLP-20-00194

Hodge M.M. (2020). Nonspeech oral motor treatment approaches for dysarthria: Perspectives on a controversial clinical practice. Perspectives on Neurophysiology and Neurogenic Speech and Language Disorders, 12, 22–28. http://dx.doi.org/10.1044/nnsld12.4.22

Hohoff, A., Seifert, E., Ehmer, U., & Lamprecht-Dinnesen, A. (1998). Articulation in children with Down Syndrome. A pilot study. Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie: Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 59(4), 220–228. https://doi.org/10.1007/BF01579166

Snowling, J., Adams, M., Bishop, J. W., D. V., & Stothard, S. E. (2020). Educational attainments of school leavers with a preschool history of speech‐language impairments. International Journal of Language & Communication Disorders, 36(2), 173-183. https://doi.org/10.1080/13682820010019892

Kamal, S. M. (2021). The Use of Oral Motor Exercises among Speech Language Pathologists in Jordan. Journal of Language Teaching and Research, 12(1), 99-103. Retrieved from https://doi.org/10.17507/jltr.1201.10

Kamhi, A. G. (2021). Treatment decisions for children with speech–sound disorders. Lang Speech Hear Serv Sch 37(4). https://doi.org/10.1044/0161-1461(2006/031)

Kerubo, G. Z. (2020). Modes of Instruction’s Influence on Performance in English Language in Special Primary Schools for the Deaf in Kisii County, Kenya (Doctoral dissertation, Kenyatta University).

Kim, M. (2020). Social learning for sustainable development: findings from a case study in Sweden. Department of Business Studies, Uppsala University Retrieved from https://www.diva-portal.org/smash/get/diva2:728222/FULLTEXT01.pdf

Kiogora, N. (2021). Children with speech and language disorders. International Academic Journal of Arts and Humanities, 1(2), 360-376. Retrieved from https://iajournals.org/articles/iajah_v1_i2_360_376.pdf

Kollia, B., Tsiamtsiouris, J., & Korik, P. (2020). Oral motor treatment: Effects of therapeutic feeding on articulatory skills. Journal of prevention & intervention in the community, 47(1), 14-24. https://doi.org/10.1080/10852352.2018.1547305

Kumar, R. (2020). Research methodology: A step-by-step guide for beginners. Sage. Retrieved from https://books.google.co.id/books?id=WK05AwAAQBAJ&printsec=frontcover#v=onepage&q&f=false

Lee, A. S., & Gibbon, F. E. (2015). Non-speech oral motor treatment for children with developmental speech sound disorders. The Cochrane database of systematic reviews, 2015(3), CD009383. https://doi.org/10.1002/14651858.CD009383.pub2

Lee, A. S. Y., & Gibbon, F. E. (2022). Non‐speech oral motor treatment for children with developmental speech sound disorders. Cochrane Database of Systematic Reviews, (3). https://doi.org/10.1002/14651858.cd009383.pub2

Lee, A., & Moore, N. (2019). A survey of the usage of non-speech oral motor exercises by speech and language therapists in the Republic of Ireland. Clinical Speech, 2. Retrieved from https://doi.org/10.3233/ACS-2014-21104

Lee, A. & Moore, N. (2015). A Survey of the Usage of Non-speech Oral Motor Exercises by Speech and Language Therapists in the Republic of Ireland. Journal of Clinical Speech and Language Studies. 21. 1-40. https://doi.org/10.3233/ACS-2014-21104

Lenzner, T., Neuert, C. & Otto, W. (2019). Cognitive Pretesting (Version 2.0). 7. Retrieved from https://www.ssoar.info/ssoar/bitstream/handle/document/56369/ssoar-2016-lenzner_et_al-Cognitive_Pretesting_Version_20.pdf?sequence=3

Locke, A., Ginsborg, J., & Peers, I. (2022). Development and disadvantage: Implications for the early years and beyond. International Journal of Language & Communication Disorders, 37(1), 3-15. https://doi.org/10.1080/13682820110089911

Lof, G. L., & Watson, M. M. (2018). A nationwide survey of nonspeech oral motor exercise use: implications for evidence-based practice. Language, Speech, and Hearing Services in Schools, 39, 392-407. https://doi.org/10.1044/0161-1461(2008/037)

Loudermill, C., Greenwell, T., & Brosseau-Lapré, F. (2021, March). A comprehensive treatment approach to address speech production and literacy skills in school-age children with speech sound disorders. In Seminars in Speech and Language (Vol. 42, No. 02, pp. 136-146). Thieme Medical Publishers, Inc. https://doi.org/10.1055/s-0041-1723840

M I M Foda, J F Nassar, M A S Baraka, Speech assessment in Down's Syndrome Children, QJM: An International Journal of Medicine, Volume 113, Issue Supplement 1, March 2020. https://doi.org/10.1093/qjmed/hcaa047.022

Mapeala, R., & Siew, N. M. (2023). The development and validation of a test of science critical thinking for fifth graders. SpringerPlus, 4(1), 1-13. https://doi.org/10.1186/s40064-015-1535-0

Marshalla, P. (2021). The Roots of oral-motor therapy: A personal view. Retrieved from https://pammarshalla.com/the-roots-of-oral-motortherapy-a-personal-view/

Martin, G. E., Klusek, J., Estigarribia, B., & Roberts, J. E. (2009). Language Characteristics of Individuals with Down Syndrome. Topics in language disorders, 29(2), 112–132. https://doi.org/10.1097/tld.0b013e3181a71fe1

Mbaluka, L. P. (2022). Analysis of strategies used in teaching speech and language: A case study of Machakos School for the Deaf, Kenya. Retrieved from https://ir-library.ku.ac.ke/server/api/core/bitstreams/cb0ecec9-299e-45f9-b744-1aa105682eed/content

McCauley, R. J., Strand, E., Lof, G. L., Schooling, T., & Frymark, T. (2019). Evidence-based systematic review: Effects of nonspeech oral motor exercises on speech. Retrieved from https://doi.org/10.1044/1058-0360(2009/09-0006)

Miksza, P., & Elpus, K. (2020). Descriptive Research design. In Oxford University Press eBooks. https://doi.org/10.1093/oso/9780199391905.003.0003

Mkongo, J. I. (2019). Inclusion/integration of children with hearing impairment in pre-primary education in Tanzania (Doctoral dissertation, IMU University). https://doi.org/10.5282/edoc.23749

Mridha, S. I. (2019). Factors influence to utilize the available service of speech & language therapy for children with communication difficulties in Bangladesh (Doctoral dissertation, Bangladesh Health Professions Institute, Faculty of Medicine, the University of Dhaka, Bangladesh).

Muratori, L. M., Lamberg, E. M., Quinn, L., & Duff, S. V. (2021). Applying principles of motor learning and control to upper extremity rehabilitation. Journal of Hand Therapy, 26(2), 94-103. https://doi.org/10.1016/j.jht.2012.12.007

MuriithI, F. M. (2020). Evaluation of educational audiological assessment process: A case study of the audiology section at Kenyatta National Hospital, Kenya (doctoral dissertation, Kenyatta University). Retrieved from https://ir-library.ku.ac.ke/items/bb315e0d-43bf-4633-88bc-4bff329dd13c

Mwangi, R. G. (2022). Motor speech skills in children with cerebral palsy: A case (Doctoral Dissertation, Kenyatta University). Retrieved from https://ir-library.ku.ac.ke/server/api/core/bitstreams/d14b0544-71ee-4bb8-aaa5-d4df83552e59/content

Namasivayam, A. K., Pukonen, M., Goshulak, D., Granata, F., Le, D. J., Kroll, R., & van Lieshout, P. (2019). Investigating intervention dose frequency for children with speech sound disorders and motor speech involvement. International journal of language & communication disorders, 54(4), 673-686. https://doi.org/10.1111/1460-6984.12472

Ndou, N. N., & Omidire, M. F. (2022). Systemic support for learners with developmental language disorders in Zimbabwe and South Africa. South African Journal of Communication Disorders, 69(1), 1-13. https://doi.org/10.4102/sajcd.v69i1.850

Nyathama, K. C. (2018). Impacts of phonological disorders on English language learning of learners with Down Syndrome in Nyeri County, Kenya (Doctoral Dissertation, Kenyatta University). Retrieved from https://ir-library.ku.ac.ke/server/api/core/bitstreams/f635e8c8-2e39-4cde-ab33-f4053cc2a771/content

Qiang, Y. (2023). An Intervention Study of Language Cognition and Emotional Speech Community Method for Children’s Speech Disorders. International Journal of Mental Health Promotion, 25(5), 627-637. Retrieved from https://doi.org/10.32604/ijmhp.2023.025746

Roberts, P., & Priest, H. (2021). Reliability and validity in research. Nursing standard, 20(44), 41-46. Retrieved from https://doi.org/10.7748/ns2006.07.20.44.41.c6560

Rocha, J., Jesus, F., Peixoto, V., Marinho, S., & Lousada, M. (2022). Nonspeech Oral Motor Exercises: Use and Knowledge of Speech-Language Pathologists Working with People with Speech Sound Disorders. Revista Chilena de Fonoaudiología, 21(1), 1-19. Retrieved from https://doi.org/10.5354/0719-4692.2022.64331

Roepke, E., & Brosseau-Lapré, F. (2021). Vowel errors produced by preschool-age children on a single-word test of articulation. Clinical linguistics & phonetics, 35(12), 1161-1183. https://doi.org/10.1080/02699206.2020.1869834

Rumbach, A., Rose, T., & Bomford, C. (2016). Analysis of speech-language pathology students’ knowledge regarding the use of non-speech oral motor exercises (NSOMEs) in clinical practice: An exploratory pilot study. Speech, Language and Hearing, 19(1), 46–54. https://doi.org/10.1080/2050571X.2015.1116730

Ruscello D. M. (2008). Nonspeech oral motor treatment issues related to children with developmental speech sound disorders. Language, speech, and hearing services in schools, 39(3), 380–391. https://doi.org/10.1044/0161-1461(2008/036)

Ruscello, D. M., & Vallino, L. D. (2020). Efficacy of Non-Speech Oral Motor Exercises for Children with Speech Sound Disorders: A re-examination of available evidence. American Journal of Speech-Language Pathology, 29(4), 1811-1820.

Schenker, J. D., & Rumrill Jr, P. D. (2019). Causal-comparative research designs. Journal of Vocational Rehabilitation, 21(3), 117–121. https://doi.org/10.3233/JVR-2004-00260

Shriberg, L. D., Strand, E. A., Jakielski, K. J., & Mabie, H. L. (2019). Phonological Patterns in Children with Articulation Disorders. Clinical Linguistics & Phonetics, 33(8), 707-736.

Silverman, B. (2018). Density estimation for statistics and data analysis. In Routledge eBooks. https://doi.org/10.1201/9781315140919

Strand, E. A., & McCauley, R. J. (2018). Dynamic Evaluation of Motor Speech Skill (DEMSS) Manual. Brookes Publishing Company. Retrieved from https://brookespublishing.com/wp-content/uploads/2021/01/DEMSS_excerpt-1.pdf

Strode, R., & Chamberlain, C. (2010). Easy does it for articulation: An oral-motor approach. East Moline, IL: LinguiSystems. Retrieved from https://www.abebooks.com/Easy-Articulation-Oral-Motor-Approach-Therapy-Manual/31312481708/bd

Swagerty, M. (2022). Investigating Satpac Intervention Intensity for Remediation of Misarticulated/s/and/z (Master's thesis, Idaho State University). Retrieved from https://www.proquest.com/openview/b6a1c702103de46ab80ec2a7086f7dda/1?pq-origsite=gscholar&cbl=18750&diss=y

Thaara, m. a. (2019). Teachers’ role in enhancing the communication skills of learners with speech and language disorders. a case of Joy Town Special Primary School, Kiambu County, Kenya (Doctoral Dissertation, Kenyatta University). Retrieved from https://ir-library.ku.ac.ke/server/api/core/bitstreams/857d11af-6f8c-4c10-a7a1-934ae180739c/content

Thomas, R. M., & Kaipa, R. (2015). The use of non-speech oral-motor exercises among Indian speech-language pathologists to treat speech disorders: An online survey. The South African journal of communication disorders = Die Suid-Afrikaanse tydskrif vir Kommunikasieafwykings, 62(1), E1–E12. https://doi.org/10.4102/sajcd.v62i1.82

Thomas, R. M., & Kaipa, R. (2020). The use of non-speech oral-motor exercises among Indian speech-language pathologists to treat speech disorders: An online survey. South African Journal of Communication Disorders, 62(1), 1-12.

Kent, R. D., & Vorperian, H. K. (2013). Speech impairment in Down syndrome: a review. Journal of speech, language, and hearing research: JSLHR, 56(1), 178–210. https://doi.org/10.1044/1092-4388(2012/12-0148)

Timmins, C., Hardcastle, W., Wood, S., Cleland, J. & Wishart, J. (2007). Variability in fricative production of young people with Down's syndrome: an EPG analysis. International Congress of Phonetic Sciences 16. Retrieved from https://www.researchgate.net/publication/228513239_Variability_in_fricative_production_of_young_people_with_Down's_syndrome_an_EPG_analysis

Tomasello, M. (2021). The social bases of language acquisition. Social Development 1.1: 67–87. https://doi.org/10.1111/j.1467-9507.1992.tb00135.x

Uberti, L. B., Portalete, C. R., Pagliarin, K. C., & Keske-Soares, M. (2019). Speech articulation assessment tools: A systematic review. Journal of Speech Sciences, 8(1), 01-35. Retrieved from https://doi.org/10.20396/joss.v8i1.14992

Vashdi, E., Avramov, A., Falatov, Š., Yi-Chen, H., Pei-Ru, J., & Mamina-Chiriac, P. T. (2020). The correlation between Non-Speech Oral Motor Exercises (NSOME) and speech production in childhood apraxia of speech treatment. A wide clinical retrospective research. BRAIN. Broad Research in Artificial Intelligence and Neuroscience, 11(3Sup1), 98-113. https://doi.org/10.18662/brain/11.3Sup1/126

Williams, P., Stephens, H., & Connery, V. (2023). What’s the evidence for oral motor therapy?. Children, 41(1), S85-S100. Retrieved from https://www.speech-language-therapy.com/pdf/papers/williamsstephensconnery2006.pdf

Wood, S. (2010) Electropalatography in the assessment and treatment of speech difficulties in children with Down Syndrome. Down Syndrome Research and Practice, 12(2), 98-102. Retrieved from https://www.down-syndrome.org/en-gb/library/research-practice/12/2/electropalatography-assessment-treatment-speech-difficulties-down-syndrome/




DOI: http://dx.doi.org/10.46827/ejse.v12i3.6666

Copyright © 2015 - 2026. European Journal of Special Education Research (ISSN 2501 - 2428) is a registered trademark of Open Access Publishing GroupAll rights reserved.

This journal is a serial publication uniquely identified by an International Standard Serial Number (ISSN) serial number certificate issued by Romanian National Library (Biblioteca Nationala a Romaniei). All the research works are uniquely identified by a CrossRef DOI digital object identifier supplied by indexing and repository platforms.

All the research works published on this journal are meeting the Open Access Publishing requirements and can be freely accessed, shared, modified, distributed and used in educational, commercial and non-commercial purposes under a Creative Commons Attribution 4.0 International License (CC BY 4.0).