Abstract
We assessed visual attention in an habituation/recovery paradigm and performance on the Bayley Scales of Infant Development in the second year of life among twelve patients who suffered moderate (Grades II-III) or severe (Grade IV) IVH, either unilateral or bilateral.
Test results showed that patients with unilateral bleed had greater habituation to a redundant stimulus, indicating more efficient information processing. Recovery of attention to a novel stimulus appeared to be related to the severity, rather than the laterality, of the IVH. As measured by the Bayley Psychomotor Index (PDI), patients with unilateral bleeds performed better than those with bilateral involvement (mean 85 vs 66). The PDI was unaffected by the grade of IVH. The Bayley Mental Development Index (MDI) was affected by severity level, with higher IVH grades showing poorer performance (mean 71 vs 56).
The results of the study support the hypothesis that unilateral hemorrhage results in a more optimal development than a bilateral one, and this may be independent of the grade of the bleed.
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Bendersky, M., Lewis, M., Anwar, M. et al. 1341 VISUAL INFORMATION PROCESSING IN INFANTS WITH INTRAVENTRICULAR HEMORRHAGE (IVH). Pediatr Res 19, 334 (1985). https://doi.org/10.1203/00006450-198504000-01365
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DOI: https://doi.org/10.1203/00006450-198504000-01365