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Cognitive, perceptual, and personal-social development of prematurely born preschoolers
Insights
Prematurely born children showed no cognitive or personal-social delays compared to full-term peers. However, they exhibited poorer visual-motor coordination, a potential indicator for future learning challenges.
Area of Science:
- Developmental Psychology
- Neonatal Research
- Pediatric Health
Background:
- Premature birth (<2,500 gm, <37 wk. gestation) can impact child development.
- Neonatal intensive care unit (NICU) graduates require monitoring for developmental trajectories.
- Understanding early developmental differences is crucial for identifying potential learning problems.
Purpose of the Study:
- To compare cognitive, perceptual, and personal-social development in 3-year-old premature and full-term infants.
- To identify developmental factors in premature infants that may predict later learning difficulties.
- To assess the impact of prematurity on specific developmental domains.
Main Methods:
- Matched-pair design comparing 40 premature infants (NICU graduates) with 40 full-term controls.
- Matching criteria included sex, race, post-conceptual age, and socioeconomic status.
- Developmental assessment using McCarthy Scales of Children's Abilities and problem-solving tasks; parental reports for personal-social development.
Main Results:
- No significant differences were found in cognitive functions (General Cognitive, Verbal, Quantitative, Memory) between premature and full-term groups.
- Parental reports indicated no differences in personal-social development.
- Prematurely born children performed significantly worse on perceptual tasks, indicating impaired visual-motor coordination.
Conclusions:
- Prematurity, in this cohort, did not lead to deficits in higher cognitive functions or personal-social development by age 3.
- Impaired visual-motor coordination in premature infants is a key finding, suggesting a specific area of developmental vulnerability.
- Early identification of visual-motor deficits may aid in interventions for potential learning problems in prematurely born children.
Abstract:
This study was designed to determine possible differences in the cognitive, perceptual, and personal-social development of prematurely and maturely born 3-yr.-olds which might foreshadow later learning problems. The subjects were 40 prematurely born graduates of a neonatal intensive care unit (birth weight less than 2,500 gm, less than 37 wk. gestation) matched on the pair-level with full-term controls on sex, race, post-conceptual age, and socioeconomic background. All subjects were singletons and parity was matched at the group level. No differences were found between the groups on tests of higher mental processes including the General Cognitive, Verbal, Quantitative, and Memory Scales of the McCarthy Scales of Children's Abilities, and researcher-devised measures of problem-solving competence. No differences in parental reports of personal-social development were noted. Prematures did not perform as well as controls on perceptual performance tasks, and this difference was interpreted as reflecting relatively impaired visual-motor coordination.