This paper presents a new perspective on the transition from early to middle childhood (i.e., human juvenility), investigated in an integrative evolutionary framework. Juvenility is a crucial life history stage, when social learning and interaction with peers become central developmental functions; here it is argued that the "juvenile transition"…

Presents a working model for studying development of autobiographical memory based on literatures concerning children's metacognitive capacities, social construction of personal narratives, and development of self-concept. Notes that source monitoring and parental styles of discussing the past affect autobiographical memory, and emphasizes the…

Because early theoretical frameworks such as Piaget's stage model and social learning theory sought to explain the development and performance of imitation in terms of overall group trends, any evidence for individual differences in this behavior was until recently largely overlooked. Results of contemporary imitation studies have not only begun…

Conducted meta-analysis of experiments comparing duration judgments of children, adolescents, and adults. Found that children made larger verbal estimates, comparable productions, shorter reproductions of durations, and more variable judgments than did older participants. Concluded that explanations are needed for children's inaccurately learned…

Reviews literature on ego identity development. Presents a model of identity development as an iterative process of person-context transactions. Maintains that one's developmental trajectory is determined by the way conflicts arising through transactions are solved. Suggests that optimal development requires balance between assimilation and…

Explores current theories of emotional development in order to identify the assumptions that could explain the strong antagonism toward early nonbasic emotions. Draws on the contrasting and polarity of viewpoints to examine the logical implications of these viewpoints for the very possibility of early nonbasic emotions and their reciprocal…

Two experiments used a formal model of developmental discontinuity derived from catastrophe theory to test whether the transition from Rule I to Rule II on the balance scale task proceeds discontinuously from ages 6 to 10, focusing on five catastrophe flags. Found that bimodality, inaccessible region, hysteresis, and sudden jump were clearly…

Discusses hierarchical complexity of tasks as a way of conceptualizing information in terms of the power required to complete a task, and its implications for developmental psychology and information science. Provides an analytic solution to the definition of developmental stages and allows for the possibility within the science of scaling the…

Examines the possibility that parent-child relationships contain horizontal qualities paralleling comparable qualities in child-peer relationships. Argues that these qualities allow children to experience and practice horizontal skills later used with peers. Focuses on reciprocity and shared power, especially in parent-child play and control…