The Child's Construction of Security As mentioned above, the attachment control system emerges from extended interplay of biases in human learning abilities with sensitive, cooperative care and secure base support. In infancy, experience with a particular caregiver can only be retained in the form of sensorimotor and sensori-affective representations. These forms of representation reflect only the behavioral possibilities and affective responses associated in experience with a particular person in a particular affective-behavioral context. They cannot be accessed voluntarily or in situations very different from the ones they reflect (viz. Sroufe, 1996). The symbolic representations of experience do not emerge until after infancy.