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Related Experiment Videos

Aphemia. Clinical-anatomic correlations.

H B Schiff, M P Alexander, M A Naeser

    Archives of Neurology
    |November 1, 1983
    PubMed
    Summary
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    Small left frontal lobe lesions cause a specific dysarthria syndrome, distinct from aphasia. This condition, sometimes called aphemia, involves severe articulation difficulties due to damage to the motor speech system.

    Area of Science:

    • Neurology
    • Neuroscience
    • Speech-Language Pathology

    Background:

    • A long-recognized syndrome of dysarthria associated with small left frontal lobe lesions suffers from varied terminology, causing confusion.
    • Inconsistent labeling hinders the recognition of this distinct clinical entity in medical literature.

    Observation:

    • The study analyzed four patients with this dysarthric syndrome, alongside a literature review of similar cases.
    • Clinical and computed tomographic (CT) data were collected to precisely map lesion locations.

    Findings:

    • Patients presented with a distinct syndrome of dysarthria without aphasia.
    • The cause was identified as small lesions within the motor articulation system, specifically the pars opercularis, inferior prerolandic gyrus, or adjacent deep white matter.

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  • This syndrome is differentiated from various forms of aphasia, including Broca's aphasia and subcortical aphasia.

    • Implications:

    • Accurate differentiation of this syndrome from aphasia is crucial for correct diagnosis and patient management.
    • The term 'aphemia' should be reserved for severe dysarthria, not considered mild Broca's aphasia.
    • Clarifying terminology will improve clinical recognition and research into this specific neurological condition.