Attachment & Behavior Archives - The Psychology Notes Headquarters

John Bowlby’s Theory of Attachment: Origins & Ainsworth’s 4 Types

A baby is left alone in an unfamiliar room for less than three minutes. What happens next tells researchers more about that child’s future relationships than almost anything else psychologists can measure. John Bowlby’s theory of attachment is the reason psychologists know to watch for it, and Mary Ainsworth is the one who figured out exactly what to look for....

Baumrind’s Parenting Styles Theory: The 4 Types Explained

A teenager rolls in an hour past curfew. One parent sits down, asks what happened, and still hands out a consequence. Another grounds first and asks questions never. A third shrugs it off entirely. These three reactions are not just personality differences, they map directly onto Baumrind’s parenting styles theory, which explains why some approaches to discipline and warmth consistently...

Separation Anxiety in Infants and Stranger Anxiety: What’s Normal and Why It Happens

Separation anxiety in infants is the distress babies show when separated from a primary caregiver, typically emerging between 8 and 14 months of age. It often develops alongside infant stranger anxiety — a related but distinct response to unfamiliar faces that appears a little earlier, around 6 to 8 months. Both are signs of healthy cognitive and emotional development, not...

Harlow’s Monkey Experiment: Why Baby Monkeys Chose Touch Over Food

Harlow’s monkey experiment was a landmark series of studies conducted by psychologist Harry Harlow in the 1950s that proved infant attachment is driven by contact comfort—the need for physical touch—not by feeding. Baby rhesus monkeys given a choice between a wire surrogate that provided milk and a soft cloth surrogate that provided none spent up to 18 hours a day...

Little Albert Experiment: Watson’s Classical Conditioning Study

The little albert experiment was a 1920 study conducted by psychologist John B. Watson and graduate student Rosalie Rayner at Johns Hopkins University. They conditioned a nine-month-old infant to fear a white rat by repeatedly pairing it with a loud, startling noise — demonstrating that fears can be learned through classical conditioning. The experiment also documented stimulus generalization, showing that...

Bronfenbrenner vs Attachment Theory: Systems vs Relationships

Two powerful theories examine child development through strikingly different lenses. Attachment Theory zooms in close, examining the intimate emotional bond between parent and child—the dyad that shapes security and trust. Bronfenbrenner’s Ecological Systems Theory zooms out wide, analyzing how workplaces, cultural values, economic policies, and social structures create the contexts within which those bonds form. Rather than competing, these perspectives...

Category: Attachment & Behavior