Provides data indicating that development occurs in cycles, with behavioral competencies appearing and developing and then disappearing only to reappear again in a more complex form at a later age. Data on conservation and auditory-manual coordination in infancy are used to support this theory. (ED)

Shows that shifts in children's organizing behaviors occur relatively independently of changes in ability. (RL)

This paper presents a summary of behavior concepts that together provide the outline of a possible developmental theory of prosocial motivation. These concepts, based on human role-taking capacities, include empathic distress, sympathetic distress, personal guilt, and existential guild. At first, a child cannot discriminate between himself and…