Videotape recordings were made of the kick and step movements of six infants seven months of age, while they were in supine and upright positions on a stationary and moving treadmill. When placed on a moving treadmill, infants performed alternating stepping movements with many characteristics of mature walking. Implications are discussed. (RH)

Focuses on systems theory as the paradigm underlying family therapy and considers the implications of this framework for conceptions of the individual, the study of parent-child interaction, and new research formulations and areas of study. Considers trends in the developmental field that move toward such formulations. (RH)

Argues that dynamic systems approaches may provide an explanatory framework based on general scientific principles for developmental psychology, using principles of self-organization to explain how novel forms emerge without predetermination and become increasingly complex with development. Contends that self-organization provides a single…