Asymmetries in visual-spatial processing following childhood stroke.

Schatz J, Craft S, Koby M, DeBaun MR
Neuropsychology. 2004 18 (2): 340-52

PMID: 15099156 · DOI:10.1037/0894-4105.18.2.340

The authors compared hemisphere-based and cognitive-domain-based hypotheses for visual-spatial deficits in children with stroke (n = 33) and children without stroke (n = 43). Children with unilateral left (n = 14) or right (n = 7) injury showed less efficient search for the visual field contralateral to their injury. Right-hemisphere injury was associated with deficient global-level processing and coordinate spatial judgments. Left-hemisphere injury resulted in relatively intact local versus global processing and categorical versus coordinate judgments. Bilateral injury (n = 12) resulted in disruption of visual search across visual fields and relative deficits in global-level processing and coordinate spatial judgments. Recovery of visual-spatial processing in children following childhood stroke is task specific. Certain visual-spatial functions typically mediated by the left hemisphere appear less vulnerable to disruption.

MeSH Terms (19)

Adolescent Anemia, Sickle Cell Attention Cerebral Cortex Cerebral Infarction Child Discrimination Learning Dominance, Cerebral Female Field Dependence-Independence Follow-Up Studies Humans Male Neuropsychological Tests Orientation Pattern Recognition, Visual Psychomotor Performance Reaction Time Reference Values

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