This handbook offers comprehensive coverage of the topics that are relevant to the field of adolescent and young adult development. The "APA Handbook of Adolescent and Young Adult Development" reviews the many factors that impact youth development across varying themes including biological underpinnings, cognitive and emotive processes,…

How can the advances of social and developmental psychology be integrated? This conceptual paper proposes to examine four basic theoretical models of social situations through which learning and development have been observed in the post-piagetian tradition: the psychosocial triangle, the frame, models of transfer and transitions, and models…

Gottlieb promoted the value of a developmental psychobiological systems approach to the study of human development. This approach recognizes the importance of comparative, animal-based research to advancing our understanding of the complexities and dynamics of the process of development. The major contribution of animal developmental studies is…

Comments on van Geert's mathematical model of Vygotsky's zone of proximal development, in this issue. Supports van Geert's use of a nonlinear model, noting that linear statistical models overlook variability in psychological phenomena. Discusses the time asymmetry in van Geert's model, which does not account for a subject's "developmental…

Outlines themes from L.S. Vygotsky's writings. His claims about the social origins of individual mental functioning have implications for the definitions of cognition and memory and for the pursuit of research on mental processes. His understanding of culture is derivative of his account of the mediation of mental functioning. (BC)

Explains the place of learning in human development from the perspective developmental contextualism, where development involves changing relations between the developing person and his or her changing context. Demonstrates that learning is no more nor less important than other focal functions at a given level; any impact is through being part of…

Notes contemporary models of human development have expanded to address a wider set of issues underlying personal change. Discusses the social cognitive model of self-regulatory development. Emphasizes the crucial development of self-regulatory competence: the point at which the processes of development become fully and reciprocally interactive…

Calls for a coalition of different research methods and strategies to better understand learning and development. Describes two such strategies: (1) testing-the-limits decomposing age-graded differences in upper limits of plasticity; and (2) experimental simulation of development, a coordinated sequence of theory-guided research steps. Both…

Maintains that, although Leontiev's sociocultural orientation and its activity emphasis were inherited from Vygotsky's theory, the two men's theoretical motives and goals differed. Vygotsky's focus on symbolic mediation transforming psychological processes and Leontiev's on activities leading to internalization of action in mental processes were…

Argues that Vygotsky's "zone of proximal development" (ZPD) can be redefined as a nonlinear dynamic model. Presents a mathematical reformulation that generates a variety of developmental patterns and has the capacity to show under which conditions unwanted or unsuccessful developmental paths may occur. Illustrates how this reformulation…

Suggests that the study of microdevelopment offers a potentially powerful way to relate learning and development where similar changes occur but in differing time frames. Microdevelopment analyzes short-term changes as developmental functions. Individuals and groups function at widely different developmental levels and grow in diverse nonlinear…

Nonuniversal theory can be used to reframe the learning-development dichotomy into a spectrum of important changes, ranging from small-scale learning events to large-scale developmental shifts. Using the universal-to-unique continuum as an organizing framework, several change mechanisms can be identified as necessary for movement through…

Sees learning as a component of development. Explains how cognitive growth can result from dialectical interactions among modes of learning and attentional mental capacity, and that these modes and components of attention relate to contextual function areas which, being neuropsychological units, can be clarified as to function by connectionist…

U-shaped developmental functions, and their N-shaped cousins, have intrigued developmental psychologists for decades because they provide a compelling demonstration that development does not always entail a monotonic increase across age in a single underlying ability. Instead, the causes of development are much more complex. Indeed,…

This paper discusses the utility of a general systems theory paradigm for psychology. The paradigm can be used for conceptualizing such complex phenomena as change over time in living systems, person-society interactions, and the epistemology of multiply determined changes. Consideration is also given to applications of the approach to…