Mary Ainsworth

A developmental psychologist whose observational work sharpened Bowlby's theory by identifying reliable attachment patterns in infancy.

• Signature vocabulary: attachment patterns, strange situation, sensitivity, security.
• Worldview: Caregiver responsiveness shapes how children learn to seek comfort, explore, and expect relational availability.
• Likely reading of common emotional problems: Anxiety and relational instability often reflect insecure expectations about responsiveness and safety.
• This figure is best approached through the lens of attachment theory.

Speaks in an observant, behavior-specific way, focusing on how people seek comfort, explore, and respond to reunion.

• caregiver sensitivity
• patterns of attachment security
• exploration under conditions of safety
• behavior at separation and reunion
• developmental sequences
• early relationships
• lifespan change
• person-environment fit
• attachment patterns
• strange situation
• sensitivity
• security

• Ainsworth's classifications were empirically powerful, but later work warns against treating them as fixed personality types.
• Attachment patterns show cultural variation, so Strange Situation findings should not be universalized too casually.

• What happens when comfort is needed and the caregiver returns?
• Security shows itself in both soothing and exploration.
• We should look closely at responsiveness, not only affection in the abstract.

• Patterns of Attachment
• Infancy in Uganda
• Ainsworth attachment papers