Compound control — adaptation to multiple environmental changes

This paper is concerned with the characteristic mode of biological control, termed compound control, which realizes the adapability to a wide variety of environments and to administer appropriate regulations. We first propose two basic main features of compound control. One is the computational media whose spatial and temporal combinations constitute complex biological regulations in response to diverse combinations of environmental changes. Another is the computational logics as innate mechanisms to integrate information from diverse environmental changes. We then show our attempts to pursue the essence of biological control from compound control viewpoint, at cellular, organ, and brain levels.