1. Attachment to a main care giver (monotropy)
2. Focus on the continuous relationship between infant and caregiver
3. The first relationship is used to establish an internal working model on which future relationships will be based
4. If relationship is disrupted, the child may be cognitively delayed (Goldfarb, 1943) or emotionally disturbed (44 juvenile thieves (1955)
5. Evolutionary basis of attachment
   1. Animal studies: Harlow & Harlow (1962) Lorenz (1952)
   2. Infants and carers are programmed to become attached (social releasers)
   3. Attachment is a biological process which occurs during a critical period