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Cortical organization in adulthood is modified by neonatal infarct: a case study
J D Lewine1, R S Astur, L E Davis
1Department of Radiology, University of New Mexico School of Medicine, Albuquerque.
Radiology
|January 1, 1994
Summary
Neonatal stroke can lead to significant brain reorganization. This study shows anomalous cortical organization of somatosensory function in a patient with early left middle cerebral artery damage.
Area of Science:
- Neuroscience
- Developmental Neuroscience
- Neuroplasticity
Background:
- Investigating the effects of early-onset brain injury on functional organization.
- Assessing somatosensory cortex reorganization following a neonatal left middle cerebral artery infarct.
- Utilizing advanced neuroimaging techniques to map brain function and structure.
Observation:
- A 23-year-old male with a history of neonatal left middle cerebral artery infarct.
- Destruction of left hemisphere primary and secondary somatosensory areas.
- Mild somatosensory deficits on the right side of the body despite significant brain injury.
Findings:
- Electrical stimulation of the right median nerve activated atypical brain regions.
- Activation observed in the left inferior temporal gyrus and right medial parietal cortex.
- Demonstration of functional reorganization in response to early unilateral brain damage.
Implications:
- Suggests the brain's capacity for significant neural reorganization following neonatal injury.
- Highlights the potential for cross-hemispheric functional compensation.
- Provides insights into the long-term effects of early-onset stroke on brain organization.