Attachment in Animals: Key Psychological Studies

Lorenz's Research on Imprinting

You've probably seen adorable videos of baby ducks following someone around - this behaviour is called imprinting, and Lorenz was the first to study it properly. He divided goose eggs so half hatched with their natural mother whilst the other half hatched in an incubator where Lorenz was the first moving thing they saw.

The results were remarkable: the goslings followed whatever they saw first, whether it was their actual mother or Lorenz himself. This critical period for bonding happens very early in a bird's life and seemed permanent.

But here's where it gets weird - Lorenz also discovered sexual imprinting. Birds that had imprinted on humans later tried to mate with humans instead of their own species! However, later research by Guiton showed that chickens who'd imprinted on washing-up gloves could eventually learn to mate normally with other chickens.

Key Point: Whilst imprinting appears strong, it might not be as permanent as Lorenz originally thought, especially for mating behaviour.

Harlow's Research on Contact Comfort

Harlow's monkey experiments might sound harsh, but they revolutionised our understanding of what babies actually need from their parents. He gave 16 baby monkeys two artificial mothers - one made of plain wire and another covered in soft cloth.

The breakthrough finding was that monkeys always preferred the cloth mother for comfort, even when the wire mother provided food. This proved that contact comfort matters more than just being fed - babies need physical affection, not just nutrition.

The long-term effects were devastating for deprived monkeys. Those raised with only wire mothers became aggressive, couldn't mate properly, and often neglected or killed their own babies. Harlow found that monkeys needed a mother figure within 90 days for normal development.

These studies helped social workers understand child abuse risk factors and showed the importance of early bonding. However, the research involved significant animal suffering, raising serious ethical questions about whether such knowledge justifies the methods used.

Remember: Harlow's work proved that emotional bonds are built on comfort and affection, not just meeting basic survival needs.