Attachment Quality: Longitudinal studies using the 'Strange Situation' show that children raised in institutions are significantly less likely to be 'securely attached' compared to children raised in family environments.
Disinhibited Attachment Markers: This behavior is thought to be an adaptation to living with multiple rotating caregivers, where the child learns to seek attention from any available adult to ensure their needs are met.
Peer Relationship Difficulties: Beyond infancy, these children often struggle with social boundaries and may experience higher rates of conflict or isolation in school settings.
The 6-Month Threshold: Evidence suggests that the human brain has a high degree of plasticity in the first few months of life, allowing for full recovery if the child is moved to a high-quality environment before 6 months of age.
Long-term Persistence: If a child remains in a deprived environment past the age of 6 months, the developmental damage to attachment and cognitive systems becomes much harder to reverse, often persisting into adolescence.
Sensitive vs. Critical: While often called a 'critical period,' some psychologists prefer 'sensitive period,' as some degree of recovery is possible later, though it is rarely as complete as early intervention.
| Feature | Institutionalisation Effects | Normal Development |
|---|---|---|
| Attachment | Often Disinhibited (over-friendly to strangers) | Secure (wary of strangers, prefers primary caregiver) |
| Cognitive | Potential for significant IQ deficits if intervention is late | IQ typically follows genetic and standard environmental paths |
| Physical | Risk of deprivation dwarfism and delayed motor skills | Standard growth trajectories based on nutrition and genetics |
Focus on the 6-Month Rule: When discussing recovery, always emphasize that adoption before 6 months is the primary predictor of positive outcomes.
Methodological Strength: Highlight that these studies are 'natural experiments' with high ecological validity, as researchers did not manipulate the conditions themselves.
Longitudinal Value: Mention that the value of this research comes from following the same children over many years (longitudinal design), allowing us to see if effects are permanent or temporary.
Avoid Generalization: Be careful not to claim that all institutionalised children have low IQ; the research shows it is a mean average and depends heavily on the age of adoption.