Comments on G. Zivin's model of expressive behavior development, presenting support for (1) affect-induced and (2) spontaneously generated emotion and expressive behavior. Argues that these phenomena are mediated by sensorimotor and sensory-perceptual processes. (HOD)

According to Jaan Valsiner, development takes place within culturally structured environments jointly organized by the activities of children and the people around them. When overlap between promoted activity and the child's zone of proximal development exists, the structure of action that results from the interplay of the two is internalized by…

An analysis is made of the reciprocal relationship between play and three areas of interaction between the brain and human development: (1) the affective characteristics of play and the brain; (2) developmental theories of cognition and play; and (3) creativity as a continuation of the brain's need for play. (JN)