Maternal behavior and attachment in low-birth-weight twins and singletons

Area of Science:

• Developmental Psychology
• Infant Psychology
• Maternal-Infant Interaction Studies

Background:

• Attachment security is crucial for infant development.
• Low-birth-weight preterm infants may face unique challenges in early interaction.
• Twinship can influence early developmental trajectories.

Purpose of the Study:

• To examine early mother-infant interaction and attachment security in low-birth-weight preterm infants, including twins.
• To compare attachment patterns between twins and singletons.
• To investigate the relationship between maternal behavior and infant attachment classifications.

Main Methods:

• Assessed 17 twin pairs, 5 singleton survivors of twin pairs, and 20 singletons (all low-birth-weight preterm).
• Conducted home observations of mother and infant behavior at 6 weeks, 3, 6, and 9 months.
• Utilized Ainsworth and Egeland and Brunquell scales for behavior ratings and the Strange Situation for attachment classification.

Main Results:

• Attachment patterns (A, B, C) in the Strange Situation were similar to full-term infants and unaffected by twinship.
• The proportion of B1 and B4 dyads was higher than predicted, while B2 and B3 were associated with higher maternal sensitivity.
• Maternal responsiveness was highest in B2 and B3 dyads; unexpectedly, B1 and B4 dyads showed the lowest maternal ratings at later observations.

Conclusions:

• Attachment security in low-birth-weight preterm infants, including twins, follows patterns seen in full-term infants.
• Maternal sensitivity and responsiveness are key factors associated with secure attachment (B2, B3).
• The unexpected finding of lower maternal ratings in B1 and B4 dyads warrants further investigation into the complexities of preterm infant-mother attachment.