title: Chaotic itinerancy and its roles in cognitive neurodynamics.
abstract: Chaotic itinerancy is an autonomously excited trajectory through high-dimensional state space of cortical neural activity that causes the appearance of a temporal sequence of quasi-attractors. A quasi-attractor is a local region of weakly convergent flows that represent ordered activity, yet connected to divergent flows representing disordered, chaotic activity between the regions. In a cognitive neurodynamic aspect, quasi-attractors represent perceptions, thoughts and memories, chaotic trajectories between them with intelligent searches, such as history-dependent trial-and-error via exploration, and itinerancy with history-dependent sequences in thinking, speaking and writing.
authors.affiliation: Research Institute for Electronic Science, Hokkaido University, Kita-12, Nishi-7, Kita-ku, Sapporo, Hokkaido 060-0012, Japan. Electronic address: tsuda@math.sci.hokudai.ac.jp.
authors.forename: Ichiro
authors.initials: I
authors.lastname: Tsuda
mesh_terms: D000818:Animals; D002540:Cerebral Cortex / Q000166:cytology*; D003071:Cognition / Q000502:physiology*; D006801:Humans; D008959:Models, Neurological; D009474:Neurons / Q000502:physiology*; D017711:Nonlinear Dynamics