Discusses the article by Lewis in this issue in the context of complex systems theory. Reviews several concepts of complex systems theory, including self-organization, entropy, phase transitions, stochastic processes, nonlinearity, and attractors. Notes that Lewis highlights the need for psychological models to treat nonlinear processes, chaotic…

Presents a model of cognition and emotion that suggests that feedback between cognition and emotion generates, maintains, and reconfigures interpretations of emotion-eliciting events at micro- and macrodevelopmental time scales and that personality and behavior self-organize in response to fluctuations in perception or cognition and trace…

Offers a theoretical and methodological approach to study of children's socio-cognitive interaction. Observation of object-centered activities among three age groups of children showed different modes of collaboration. Processes were similar across age groups; roots of basic peer interaction patterns reach back into infancy. Similarities across…

Comments on Verba's ideas about collaboration in peer interaction in this issue. Praises Verba for setting new direction in the study and understanding of social processes in cognitive development and for establishing important continuities in how children communicate with peers. Notes that Verba's analyses suggest natural categories of…