2006 Volume 72 Issue 713 Pages 109-116
This paper deals with a concept that effective robotic function emerges from not only intelligence but also the balance of morphology and intelligence through physical interaction with a changing environment. In this paper, the morphology of a robot is represented by the arrangement of two visual sensors and the intelligence is described as a decision tree of sensor inputs and motor outputs. Both of morphology and intelligence are automatically generated and evolved by genetic program-ming (GP) for a task of maintaining a certain distance between the robot and an object. The result shows that emergence of symmetry properties for functionality depends on the velocity ratio between the robot and the object.