Abstract:
:The goal of this study of 66 twins was to determine whether motor and cognitive functions assessed in early and middle childhood are vulnerable to perinatal hypoxic risk. In an earlier study of 76 infant and toddler twins (S. Raz, F. Shah, & C. Sander, 1996), the authors found that intrapair discrepancy on the Mental Developmental Index, but not on the Psychomotor Developmental Index, of the Bayley Scales of Infant Development was associated with discordance for perinatal hypoxic risk. The twins at lower risk outperformed their higher risk co-twins. In the present study the authors sought to establish in a new sample of preschool and school-age twins whether gaps in performance persist into early and middle childhood. Although the disparity in hypoxic risk between the co-twins was typically moderate, significant intrapair differences were observed on the measure of motor performance. Among the motor abilities examined, skills involving visually guided ballistic arm movements appeared to be the most vulnerable to perinatal risk.
journal_name
Neuropsychologyjournal_title
Neuropsychologyauthors
Raz S,Glogowski-Kawamoto B,Yu AW,Kronenberg ME,Hopkins TL,Lauterbach MD,Stevens CP,Sander CJdoi
10.1037//0894-4105.12.3.459subject
Has Abstractpub_date
1998-07-01 00:00:00pages
459-67issue
3eissn
0894-4105issn
1931-1559journal_volume
12pub_type
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