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Related Experiment Videos

Atypical dominance for language in developmental dysphasia

I P Martins1, N L Antunes, A Castro-Caldas

  • 1Centro de Estudos Egas Moniz, Hospital de Sta Maria, Lisboa, Portugal.

Developmental Medicine and Child Neurology
|January 1, 1995
PubMed
Summary

This study details a rare case of acquired aphasia in a boy with developmental language disorder, highlighting unusual brain specialization and plasticity. The findings suggest normal cerebral plasticity for acquired lesions in such complex cases.

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Speech-Language Pathology

Background:

  • Developmental language disorder (DLD) affects language acquisition.
  • Acquired aphasia results from brain injury.
  • Crossed aphasia, typically associated with left-hemisphere lesions, is rare in right-handed individuals.

Observation:

  • A 13-year-old right-handed boy with DLD developed acquired aphasia due to a right-frontal abscess.
  • The aphasia presented as non-fluent speech with impaired auditory comprehension, atypical for prerolandic lesions.
  • This case demonstrates crossed aphasia in the context of DLD.

Findings:

  • The co-occurrence of DLD and acquired aphasia suggests potential links between early language impairments and later brain injury responses.

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  • Atypical cerebral dominance and unusual intrahemispheric specialization patterns were observed.
  • The patient exhibited rapid and complete recovery from aphasia.

    • Implications:

    • This case underscores the complex interplay between developmental language impairments and acquired neurological conditions.
    • It suggests that significant cerebral plasticity may persist even in individuals with atypical brain organization.
    • Further research into brain lateralization and plasticity in DLD is warranted.