Attachment: Bowlby, Ainsworth and the attachment styles
- Theory
Attachment is the bond a child forms with caregivers. Its quality, secure or insecure, depends mainly on how sensitive and consistent the care is.
What it is
John Bowlby described attachment as an inborn system that keeps an infant close to a caregiver, who becomes a secure base for exploring and a safe haven when frightened. Harlow's monkey studies showed that comfort, not only food, drives the bond. Mary Ainsworth measured attachment quality with the Strange Situation, in which a 12- to 18-month-old is separated from and reunited with the caregiver; the child's behavior at reunion defines the style.
Key facts
- Bowlby's secure base means the child explores more freely when the caregiver is close and available.
- Attachment forms in the first year with the main caregivers, and a child can have different styles with different people.
- Internal working models are the expectations about others and oneself built from early relationships.
- Disorganized attachment is not proof of abuse, but it is a warning sign that justifies a careful look at the child's safety.
Attachment styles in the Strange Situation
| Style | Child at separation and reunion | Typical caregiving | Later associations |
|---|---|---|---|
| Secure | Upset when the caregiver leaves; greets and is comforted on return, then plays again | Sensitive, responsive and consistent | Better emotion regulation and peer relationships |
| Avoidant | Little visible distress; avoids or ignores the caregiver on return | Rejecting or emotionally distant | Suppression of emotion, difficulty asking for help |
| Ambivalent (resistant) | Very distressed; seeks contact but resists it and is hard to soothe | Inconsistent, unpredictable | Anxiety, dependence on others' approval |
| Disorganized | Contradictory or frozen behavior, approaches then backs away, fear of the caregiver | Frightening or frightened care, maltreatment, unresolved caregiver trauma | Highest risk of later behavior and dissociative problems |
Clinical notes
- In hospital, rooming-in, consistent caregivers and allowing parents to stay reduce the distress of young children.
- Severe neglect or institutional care in early childhood can lead to attachment disorders; maltreatment needs reporting and protection.
- Separation anxiety that is excessive for age and interferes with daily life is a disorder, different from the normal protest of a toddler.
Test yourself
Think of the answer, then tap the question to see it.
What procedure did Ainsworth use to classify attachment, and at what age?
The Strange Situation, at about 12 to 18 months: separation from and reunion with the caregiver, with a stranger present.
Which attachment style is most strongly linked to child maltreatment?
Disorganized attachment, with contradictory or fearful behavior toward the caregiver.
What type of caregiving is linked to ambivalent (resistant) attachment?
Inconsistent, unpredictable caregiving.
What did Harlow's experiments with infant monkeys show?
That infants seek comfort and contact, not only food: they preferred a soft cloth surrogate to a wire one that gave milk.
Elsewhere in DurgiPedia
Connections
Educational content on behavior and the clinical relationship; not a diagnostic or treatment guide and no substitute for assessment by a health professional. If you or someone near you is at risk, seek help now from an emergency service or a mental-health helpline.
Sources: Milestones by 9 Months (Centers for Disease Control and Prevention (CDC), 2026); Milestones by 18 Months (Centers for Disease Control and Prevention (CDC), 2026).
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Representative model, for educational purposes only.