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Information Processing in Toddlers: Continuity from Infancy and Persistence of Preterm Deficits

Susan A Rose1, Judith F Feldman, Jeffery J Jankowski

  • 1Departments of Pediatrics and Psychiatry, Kennedy Center, Albert Einstein College of Medicine/Children's Hospital at Montefiore.

Intelligence
|February 18, 2010
PubMed

Insights

Preterm infants exhibit persistent information processing deficits through toddlerhood, with no catch-up observed. However, cognitive abilities show remarkable continuity from infancy, highlighting early development patterns.

Area of Science:

  • Developmental Psychology
  • Cognitive Neuroscience
  • Pediatric Research

Background:

  • Assessing information processing in early childhood is crucial for understanding developmental trajectories.
  • Previous research has examined cognitive development in infancy, but continuity into toddlerhood requires further investigation.
  • Premature birth (<1750 g) is associated with potential long-term cognitive challenges.

Purpose of the Study:

  • To evaluate information processing abilities in toddlers (24 and 36 months) born preterm versus full-term.
  • To examine the continuity of cognitive abilities from infancy (7 and 12 months) through toddlerhood.
  • To determine if early information processing deficits in preterms persist and impact general cognitive ability.

Main Methods:

  • A cohort of preterm and full-term infants was assessed using a battery of tasks at 7, 12, 24, and 36 months.
  • The tasks measured 11 specific abilities across memory, processing speed, attention, and representational competence.
  • Statistical analyses examined continuity, additive effects, and mediation of cognitive deficits.

Main Results:

  • Preterm infants demonstrated persistent deficits in immediate recognition, recall, encoding speed, and attention, with no evidence of 'catch-up'.
  • Significant continuity was observed in most information processing aspects from infancy to toddlerhood.
  • Specific cognitive abilities combined additively to predict global cognitive ability, supporting componential intelligence theories.
  • Toddler information processing abilities fully mediated the cognitive deficits observed in preterm children.

Conclusions:

  • Information processing abilities demonstrate strong continuity from infancy through the first three years of life, contrary to theories of discontinuity.
  • Persistent early deficits in preterm infants' information processing significantly contribute to their later cognitive challenges.
  • Understanding these continuous developmental pathways is vital for early intervention strategies in high-risk infants.

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