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Related Experiment Videos

[Number agraphia].

A Fradis, A Leischner

    European Archives of Psychiatry and Neurological Sciences
    |January 1, 1985
    PubMed
    Summary

    Aphasic patients frequently struggle with writing numbers to dictation, with 98% making errors. Standard assessments should include number writing to improve diagnosis of aphasia subtypes.

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    Area of Science:

    • Neurolinguistics
    • Cognitive Psychology
    • Speech-Language Pathology

    Context:

    • Aphasia, a language disorder resulting from brain damage, significantly impacts communication abilities.
    • Writing deficits are common in aphasia, but the specific challenges with numerical writing are less understood.
    • This study investigates the nuances of number-writing difficulties across different aphasia subtypes.

    Purpose:

    • To systematically analyze the types and frequencies of errors made by aphasic patients when writing numbers to dictation.
    • To compare the prevalence of specific writing disturbances (e.g., macrographia, serial writing) in number writing versus word/letter writing.
    • To identify potential differences in numerical writing deficits among total, mixed, motor-amnesic, and sensory-amnesic aphasia subtypes.

    Summary:

    • 175 aphasic patients were assessed on their ability to write multi-digit numbers dictated to them, revealing 12 distinct error types.
    • Nearly all patients (98%) exhibited at least one error, with 80.6% failing to correctly write three-digit numbers.
    • Disturbances like macrographia and serial writing were more common in number dictation than word/letter dictation, particularly in sensory-amnesic aphasia. German-speaking patients showed a specific 'Stellenwertfehler' (positional value error) in 34.9% of cases.

    Impact:

    • Highlights the significant and widespread challenges aphasic individuals face with numerical writing.
    • Suggests that incorporating multi-digit number dictation into standard aphasia examinations can provide more comprehensive diagnostic insights.
    • Provides valuable data for refining therapeutic interventions targeting writing impairments in various aphasia profiles.

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