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Behavioral patterns in full-term and preterm twins.

M L Riese

    Acta Geneticae Medicae Et Gemellologiae
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Newborn twin behavior, including preterm infants, shows constitutional influences. While preterm twins exhibit similar behavioral consistency to full-term twins, notable differences in specific ratings exist between the groups.

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    Area of Science:

    • Neonatal behavioral research
    • Twin studies in developmental psychology
    • Behavioral genetics in newborns

    Background:

    • Neonatal behavior is crucial for understanding early development.
    • Twin studies offer insights into genetic and environmental influences on behavior.
    • Preterm infants may exhibit distinct behavioral patterns compared to full-term infants.

    Purpose of the Study:

    • To compare behavioral assessment scores between stable preterm and full-term newborn twins.
    • To investigate constitutional influences on neonatal behavioral patterns.
    • To identify specific behavioral differences between preterm and full-term twins.

    Main Methods:

    • Behavioral assessments were conducted on 160 stable preterm and 120 full-term newborn twins.

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  • Behaviors were evaluated across categories: irritability, soothing resistance, reactivity, reinforcement value, and activity level.
  • Within-pair correlations were analyzed to assess behavioral consistency.

    • Main Results:

    • Within-pair correlations were significant across all behavioral categories, suggesting constitutional influences.
    • Preterm infants showed behavioral consistency comparable to full-term infants in irritability, soothing resistance, and reactivity.
    • Significant group differences were observed in the actual ratings between preterm and full-term twins.

    Conclusions:

    • Neonatal behavior in twins is influenced by constitutional factors.
    • Preterm infants share some behavioral consistency with full-term infants but also exhibit distinct differences.
    • Observed behavioral differences in preterm twins align with findings in singleton infant studies.