Mediators of behavioral problems in 7-year-old children born after 24 to 28 weeks of gestation

L Nadeau1, M Boivin, R Tessier

  • 1Research Center, H pital Ste-Justine, Montreal, Quebec, Canada. line.nadeau@psy.ulaval.ca

Insights

Extremely preterm (EP) very low birth weight (VLBW) children exhibit more behavior problems, but this link disappears when considering neuromotor and intellectual factors. These developmental delays, not prematurity itself, explain later behavioral issues in EP/VLBW children.

Area of Science:

  • Developmental Psychology
  • Pediatric Neurology
  • Behavioral Science

Background:

  • Prematurity is associated with developmental challenges.
  • Understanding the pathways linking prematurity to later behavior problems is crucial.

Purpose of the Study:

  • To investigate if neuromotor and intellectual functioning mediate the relationship between extreme prematurity and school-age behavior problems.
  • To identify specific developmental factors contributing to behavioral outcomes in extremely preterm children.

Main Methods:

  • Compared extremely preterm/very low birth weight (EP/VLBW) children with normal birth weight (NBW) controls.
  • Assessed neuromotor, intellectual, and working memory at preschool age.
  • Evaluated behavior problems at school age using peer, teacher, and parent reports.

Main Results:

  • EP/VLBW children showed poorer IQ and neuromotor development compared to NBW children.
  • EP/VLBW children exhibited more sensitive/isolated, inattentive, and hyperactive behaviors.
  • The association between prematurity and behavior problems was mediated by intellectual and neuromotor delays.

Conclusions:

  • Extreme prematurity indirectly impacts school-age behavior through neuromotor and intellectual deficits.
  • Specific factors like working memory and general intellectual delay explain different behavioral issues.
  • Family adversity also contributed to inattentive behaviors.

Related Concept Videos

Socioemotional Development during Infancy01:30

Socioemotional Development during Infancy

Socio-emotional development in infancy is primarily shaped by early emotional responses and social connections, with temperament playing a central role. Temperament refers to the consistent patterns in an individual's emotional and behavioral responses, observable even in infancy. By examining temperament, researchers can better understand an infant's unique ways of interacting with the world, influencing subsequent personality and socio-emotional growth.
Primary Temperament Types
Stella Chess...
Relationships with Peers During Infancy and Toddlerhood01:26

Relationships with Peers During Infancy and Toddlerhood

Infants and toddlers show early interest in peers, especially children of similar age and developmental level. Between 6 and 12 months, infants increasingly touch, smile at, and babble to one another. These brief interactions often happen alongside individual play rather than as coordinated activity.Early Peer InteractionAround the first birthday, children begin sharing objects, making eye contact, smiling, and approaching peers. Behaviors such as hitting, grabbing, or repeated touching may...
Sibling Relationships During Infancy and Toddlerhood01:30

Sibling Relationships During Infancy and Toddlerhood

Infants often form early attachments to older siblings, using them as a source of comfort during distress. As infants become more mobile, sibling conflict commonly increases over toys, personal space, and parental attention, particularly after about 18 months.Conflict and Social LearningAs toddlers become more involved in family interactions, they learn which behaviors please or annoy their siblings. Although disagreements may involve rivalry or frustration, they can also promote...
Attention-Deficit/Hyperactivity Disorder01:30

Attention-Deficit/Hyperactivity Disorder

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
Behaviorist Approach of Cognitive Development01:18

Behaviorist Approach of Cognitive Development

Learning approaches explain cognitive development through observable learning processes and the ways experiences shape behavior. During infancy, learning can happen through classical conditioning, operant conditioning, and modeling. These processes allow infants to form associations, respond to consequences, and learn by observing others.Classical and Operant ConditioningClassical conditioning happens when an infant associates a previously neutral stimulus with another stimulus that naturally...
Social Referencing During Infancy and Toddlerhood01:27

Social Referencing During Infancy and Toddlerhood

Social referencing is the process by which infants and young children use others’ emotional reactions to determine how to respond to unfamiliar or uncertain situations. Caregivers provide cues through facial expressions, tone of voice, and behavior, helping children judge whether an object or event is safe, threatening, or enjoyable. This ability supports emotional development, social learning, and adaptation to the surrounding environment.Development of Social ReferencingSocial referencing...