title: From a homeostatic to a homeodynamic self.
abstract: Life as an autonomous homeostatic system is discussed. A mechanism that drives a homeostatic state to an autonomous self-moving state is examined with two computational cell models. The mechanism is met with Ashby's ultrastability, where random parameter searching is activated when a system breaks a viability constraint. Such a random search process is replaced by the membrane shape in the first model and by chaotic population dynamics in the second model. Emergence of sensors, motors and the recursive coupling between them is shown to be a natural outcome of an autonomous homeostatic system.
authors.affiliation: Department of General Systems Sciences, The Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Tokyo 153-8902, Japan. ikeg@sacral.c.u-tokyo.ac.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Ikegami
authors.forename: Keisuke
authors.initials: K
authors.lastname: Suzuki
mesh_terms: D000818:Animals; D003071:Cognition / Q000502:physiology*; D004532:Ego; D006706:Homeostasis / Q000502:physiology*; D006801:Humans; D033182:Intention; D008954:Models, Biological; D026684:Personal Autonomy; D014836:Volition / Q000502:physiology*