1 Beyond Social Attachment: The Dynamics of Interactional Development.- Attachment and the Establishment of Interactions.- Isolation and Adaptation.- Immediate Effects.- Intermediate Effects.- Long-Term Effects.- Isolation ? Adaptation: A New Perspective.- The Formation of New Relationships.- Long-Term Isolation Effects and Changes.- On Social Development in Children.- Isolation in Infants.- New Relationship Formation.- Toward Principles of Interactional Development.- Concluding Comments.- References.- 2 An Ethological-Cognitive Model for the Attenuation of Mother-Child Attachment Behavior.- Attenuation of Attachment Behavior in Nonhuman Primates.- Post-Infancy Changes in Mother¿Child Attachment Behavior.- The Cookie Test.- The Strange Situation.- Further Changes in Mother¿Child Attachment Behavior.- The Early Development of Perspective Taking.- Observations of Further Changes in Mother¿Child Attachment Behavior.- Summary and Conclusions.- References.- 3 Establishing New Social Relations in Infancy.- Stranger¿Infant Study.- Peer Study.- Discussion.- References.- 4 Brief Separation and Communication between Infant and Mother.- The Nature of Infant¿Mother Separation.- Attachment and Responses to Brief Separation.- Research Strategy.- The Role of Nonsocial Stimuli.- Study 1.- Study 2.- The Role of Social Stimuli.- Study 3.- The Role of Mother¿s Departure and Absence.- Study 4.- Study 5.- Sex Differences in Response to Separation.- Maternal Response to Separation.- Study 6.- Conclusions.- References.- 5 Experiments on Mother¿Infant Interaction Underlying Mutual Attachment Acquisition: The Infant Conditions the Mother.- The Conceptual Context.- Attachment: Metaphor and Process.- Researches on Directions of Influence in Mother¿Infant Interchange.- A Program of Research on the Directions of Influence in Mother¿Infant Interchange.- Experiment 1.- Method.- Results.- Experiment 2.- Method.- Results.- Discussion.- Summary and Conclusion.- References.- 6 Peers, Parents, and Primates: The Developing Network of Attachments.- Network Analysis.- Bonnet Macaques.- Grooming.- Play.- Mounting.- Interspecific Comparisons.- Baboons.- Savannah Baboons.- Hamadryas Baboons.- Forest Baboons.- Langurs.- Orangutans.- Conclusions.- References.- 7 Pheromonal Mediation of Maternal Behavior.- The Synchrony of the Mother¿Litter Interaction.- The Properties of Maternal Pheromone.- The Developmental Course of the Pheromonal Bond.- The Role of Pup Stimulation in the Control of Maternal Pheromone.- Hormonal Mediation of Pup Stimulation.- The Site of Maternal Pheromone Emission.- The Site of Maternal Pheromone Synthesis.- Maternal Pheromone Synthesis.- The Mechanism for Maternal Pheromone Emission.- Control of the Increase in Food Intake in Lactating Female Rats.- How Do Pups Come to Approach the Odor of Their Mother?.- The Function of the Pheromonal Bond in the Mother¿Litter Interaction.- References.- 8 Development of Attachment and Other Social Behaviors in Rhesus Monkeys.- Unlearned Response Systems in Monkeys.- Interactions Between Maturation and Social Environments.- Mechanisms Underlying the Development of Specific Social Attachment Behaviors.- Summary and Perspectives.- References.