Bowlby uses the notion of faulty internal working models to describe different patterns of neurotic attachment. He sees the basic problem of 'anxious attachment" as that of maintaining attachment with a care-giver who is unpredictable or rejecting. Here the internal working model will be based not on accurate representation of the self and others, but on coping, in which the care-giver must be accommodated to. The two basic strategies here are those of avoidance or adherence, which lead to avoidant or ambivalent attachment.