Journal of Pediatric Psychology Advance Access published online on September 15, 2009
Journal of Pediatric Psychology, doi:10.1093/jpepsy/jsp079
© The Author 2009. Published by Oxford University Press on behalf of the Society of Pediatric Psychology. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org
Commentary: Environmental Influences: Issues of Timing and Type
Division of Developmental and Behavioral Pediatrics/Psychology, Southern Illinois University School of Medicine
All correspondence concerning this article should be addressed to Glen P. Aylward, Division of Developmental and Behavioral Pediatrics/Psychology, Southern Illinois University School of Medicine, 19658, Springfield, IL 62794-9658, USA. E-mail: gaylward@siumed.edu
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Long-term neurodevelopmental outcome is frequently considered the benchmark in determining the natural sequelae of biologic risks, or the efficacy of various medical interventions in infants born at extremely low birth weight (ELBW; Aylward, 2005
). Initially, primary emphasis in outcome studies was placed on major disabilities: moderate/severe intellectual disabilities, sensorineural hearing loss/blindness, cerebral palsy, and epilepsy. However, increasing numbers of "non-disabled" survivors subsequently were found to display problems at later ages. These high prevalence/low