Learning theory was proposed by Dollard + Miller in 1950s. They stated that attachment was formed based on 'cupboard love' as it is focused on food. Learning theory involves operant and classical conditioning
Operant conditioning of infants-Crying is positively reinforced by attention.
Operant conditioning of caregivers-Attention is negatively reinforced by cessation of crying.
Secondary drive-Satisfaction of the primary hunger drive is associated with the caregiver.
One criticism of social learning theory is there is conflicting evidence from animal studies. Geese imprinted on the first moving object regardless of food
Another criticism of learning theory is conflicting human studies. Isabella et al. found that interactional synchrony improved attachment
One strength of learning theory is some conditioning may play a role on attachment- ie comfort. However conditioning gives infants a passive role which in fact it is not.