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Related Experiment Videos

Sequential and non-speech praxic abilities in developmental verbal apraxia.

D M Aram, S J Horwitz

    Developmental Medicine and Child Neurology
    |April 1, 1983
    PubMed
    Summary

    Children with developmental verbal apraxia show deficits in verbal sequencing compared to non-verbal skills. While not exhibiting general apraxias, they struggle with sequences of oral movements.

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    Area of Science:

    • Neurolinguistics
    • Developmental Psychology
    • Speech-Language Pathology

    Background:

    • Developmental verbal apraxia (DVA) is a motor speech disorder affecting speech sound production.
    • Understanding the cognitive and motor underpinnings of DVA is crucial for effective intervention.
    • Sequential processing is fundamental to both verbal and non-verbal motor skills.

    Purpose of the Study:

    • To investigate verbal and non-verbal sequential abilities in children with DVA.
    • To assess manual-gestural, constructional, and oral motor skills in this population.
    • To compare DVA sequential abilities to non-verbal skills and normative data.

    Main Methods:

    • A group of 10 children diagnosed with DVA participated.
    • Assessment included verbal and non-verbal sequential tasks.
    • Evaluated manual gestures, constructional abilities, and non-speech volitional oral movements.

    Main Results:

    • Children with DVA demonstrated significant deficits in verbal sequential abilities.
    • These verbal deficits were evident when compared to their own non-verbal sequential skills.
    • Most children struggled with sequences of non-speech volitional oral movements, but not single movements.

    Conclusions:

    • Children with DVA exhibit specific impairments in verbal sequencing.
    • The findings suggest a dissociation between single oral motor control and sequential oral motor planning.
    • Further research should explore the relationship between verbal sequencing and other motor skills in DVA.

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