Notes how preceding articles expand the repertoire of theory-relevant assessments of attachment, with a special emphasis on Ainsworth's concept of the secure base. Focuses on a number of issues raised by this collection that are particularly promising for theory development, including assessment of secure-base behavior and maternal sensitivity,…

This essay reviews research on mother-infant roles during early interactions and how these serve to foster the development of infant emotion regulation. It provides illustrations of the ways in which physical unavailability (resulting from hospitalization or other separation) and emotional unavailability (resulting from mental illnesses such as…

This essay discusses the similarities between animal behavior and human attachment behavior demonstrated by infants and their mothers. The provision of warmth, the tactile and olfactory stimulation of the mother's physical interactions, and the oral sensory and absorptive consequences of nursing are found to provide specific and independent…