Discusses Adolph's research on locomotion with regard to the requirements of an ecological psychology, especially the use of control laws; her examination of individual styles and normative patterns as it reflects a dynamic systems perspective; and her use of cognitive processes of decision making in explaining why infants approach or avoid a…

Examines the meaning of reaction time (RT) and the possibility that it may predict other cognitive and motor skills in the first year of life. Considers two competing models that specify the information-processing components underlying RT performance. Describes the neural data needed to definitively choose between the models and considers…