Environmental effects on language development in normal and high-risk child populations
Susan H Landry1, Karen E Smith, Paul R Swank
1Department of Pediatrics, University of Texas-Houston Health Science Center, 77030, USA.
Seminars in Pediatric Neurology
|September 28, 2002
Summary
Very low birth weight (VLBW) children exhibit delayed language development compared to term-born peers, independent of cognitive deficits. Caregiver interaction styles significantly influence language growth in these children.
Area of Science:
- Developmental Psychology
- Pediatric Medicine
- Linguistics
Background:
- Very low birth weight (VLBW) is associated with medical risks impacting child development.
- Language development trajectories in VLBW children require further investigation.
- Socioeconomic status (SES) is a known factor influencing child development outcomes.
Purpose of the Study:
- To compare language development in VLBW children (high and low medical risk) with term-born children.
- To examine the relationship between nonverbal cognitive abilities and language difficulties in VLBW children.
- To investigate the influence of caregiver interaction behaviors on language development within a lower SES population.
Main Methods:
- Longitudinal study tracking language development from infancy to 8 years.
- Comparison of three groups: high medical risk VLBW, low medical risk VLBW, and term-born children.
- Assessment of nonverbal cognitive skills and caregiver interaction patterns.
Main Results:
- VLBW children, regardless of medical risk, demonstrated lower language levels and slower development rates than term children.
- Language deficits in VLBW children were observed independently of general nonverbal cognitive deficits.
- Lower SES negatively impacted language development rates across all groups, but caregiver interaction quality predicted skill growth.
Conclusions:
- VLBW poses significant risks for language development, extending beyond general cognitive impairments.
- Early caregiver interactions, characterized by sustained attention and less directiveness, are crucial for fostering language growth in at-risk children.
- Intervention strategies should consider both medical risk factors and the quality of early social-communicative environments.
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