Bowlby proposed that attachment is innate and adaptive — children are born with a biological drive to form attachments, particularly with one primary caregiver (monotropy), for survival and emotional development.
Similar response to all objects. Beginning to show preference for social stimuli (faces, voices).
Preference for people over objects. Accept comfort from anyone. No stranger anxiety.
Strong attachment to one primary figure. Show separation anxiety and stranger anxiety. Proximity-seeking behaviour.
Form attachments to other figures (father, grandparents, siblings). Secondary attachments provide a "safety net."
A controlled observation to assess the quality of infant attachment. Conducted in a novel environment with the infant (12-18 months), caregiver, and a stranger.
Exploration: Uses caregiver as secure base, explores freely.
Separation: Moderate distress when parent leaves.
Reunion: Enthusiastic greeting, quickly comforted.
Stranger: Cautious but friendly when parent present.
Exploration: Explores freely, little reference to caregiver.
Separation: No distress when parent leaves.
Reunion: Ignores or avoids parent on return.
Stranger: No stranger anxiety. Treats stranger and parent similarly.
Exploration: Reluctant to explore, stays close to caregiver.
Separation: Very distressed when parent leaves.
Reunion: Seeks comfort but resists it (pushes away). Ambivalent.
Stranger: Very wary of stranger, not easily comforted.
Loss of an attachment that has already formed. Bowlby's maternal deprivation hypothesis: prolonged separation from the primary caregiver during the critical period leads to irreversible emotional damage, including affectionless psychopathy.
Evidence: Bowlby's 44 thieves study — 14 of 44 juvenile thieves were "affectionless psychopaths," and 12 of those had experienced prolonged early separation.
Never having formed an attachment at all. Rutter argued Bowlby confused deprivation and privation — privation is more damaging. The effects of privation are harder to reverse than deprivation.
Evidence: Rutter's Romanian orphan studies — children adopted before 6 months recovered well. Those adopted after 6 months showed lasting effects (disinhibited attachment).