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Related Experiment Videos

[Crossed buccofacial apraxia].

I Martí1, F Moreno, M Mendioroz

  • 1Servicio de Neurología. Hospital Aránzazu. San Sebastián.

Neurologia (Barcelona, Spain)
|August 4, 2001
PubMed
Summary
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Buccofacial apraxia, typically linked to left hemisphere damage, can occur with right hemisphere lesions. This case highlights that facial motor control may be independent of language and limb movement in some individuals.

Area of Science:

  • Neuroscience
  • Neurology
  • Cognitive Science

Background:

  • Praxis and language functions are traditionally associated with the right hemisphere of the brain.
  • Buccofacial apraxia is commonly observed in right-handed individuals with left hemisphere lesions and aphasia.

Observation:

  • A right-handed patient presented with buccofacial apraxia.
  • Neuroimaging (MRI) revealed an ischaemic lesion in the right cerebral hemisphere.

Findings:

  • The patient exhibited buccofacial apraxia without aphasia or limb apraxia.
  • This contrasts with the typical presentation of buccofacial apraxia associated with left hemisphere lesions.

Implications:

  • The findings suggest that voluntary control of facial muscles may be independent of language processing and limb motor learning in some individuals.

Related Experiment Videos

  • This case challenges the established neuroanatomical correlates for praxis and language, suggesting potential hemispheric lateralization variability.