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…