Cited by 34Epilepsy research and treatmentLanguage Development and DisordersGenetics and Neurodevelopmental Disorders

The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Dysarthria and broader motor speech deficits in Dravet syndrome

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Abstract

Objective: To analyze the oral motor, speech, and language phenotype in 20 children and adults with Dravet syndrome (DS) associated with mutations in SCN1A. Methods: Fifteen verbal and 5 minimally verbal DS patients with SCN1A mutations (aged 15 months-28 years) underwent a tailored assessment battery. Results: Speech was characterized by imprecise articulation, abnormal nasal resonance, voice, and pitch, and prosody errors. Half of verbal patients had moderate to severely impaired conversational speech intelligibility. Oral motor impairment, motor planning/programming difficulties, and poor postural control were typical. Nonverbal individuals had intentional communication. Cognitive skills varied markedly, with intellectual functioning ranging from the low average range to severe intellectual disability. Language impairment was congruent with cognition. Conclusions: We describe a distinctive speech, language, and oral motor phenotype in children and adults with DS associated with mutations in SCN1A. Recognizing this phenotype will guide therapeutic intervention in patients with DS.

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Research works printed but not linked: 4

  1. Hayden D, Wetherby AM, Cleary JE, Prizant BM. Early Motor Control Scales: Prepublication Version. Baltimore: Paul H. Brookes Publishing Co.; 2011.
  2. Zimmerman I, Steiner V, Pond R. Preschool Language Scales, Australian and New Zealand Language Adapted Edition, 5th ed. Sydney: Pearson; 2011.
  3. Semel E, Wiig E, Secord W. Clinical evaluation of language fundamentals. In: Australian Standardised Edition, 4th ed. Marrickville, Australia: Harcourt Assessment; 2006.
  4. Wechsler D. Wechsler Intelligence Scale for Children, Australian Standardised Edition, 4th ed. Sydney: Pearson Clinical and Talent Assessment; 2005.

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Metadata

Authors
Turner, S. J., Brown, A., Arpone, M., Anderson, V., Morgan, A. T., & Scheffer, I. E.
Affiliations
Royal Children's Hospital (AU)
Venue
Neurology
Published
2017-02-21
Volume
88
Issue
8
Pages
743-749
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2585652737
Cited by
33
References
36
Citations by year
2026: 3 · 2025: 3 · 2024: 7 · 2023: 2 · 2022: 3 · 2021: 5 · 2020: 2 · 2019: 3 · 2018: 3 · 2017: 2
FWCI
2.24
Type
journal article
Language
en
Open access
Locations
  • Neurology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Clinical Neurology › Epilepsy research and treatment
  • Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
Dravet syndrome, dysarthria, motor speech disorders, speech intelligibility, language impairment, SCN1A mutations, intellectual disability, prosody, postural control, motor planning, voice disorders, nasal resonance
MeSH terms
Adolescent, Adult, Child, Child, Preschool, Dysarthria, Epilepsies, Myoclonic, Female, Humans, Infant, Language, Male, Motor Skills, Mutation, Phenotype, Speech, Cohort Studies, Dyskinesias, Young Adult, NAV1.1 Voltage-Gated Sodium Channel

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