|
Hokkaido University Collection of Scholarly and Academic Papers >
Research Institute for Electronic Science >
Peer-reviewed Journal Articles, etc >
Toward an interpretation of dynamic neural activity in terms of chaotic dynamical systems
| Title: | Toward an interpretation of dynamic neural activity in terms of chaotic dynamical systems |
| Authors: | Tsuda, Ichiro1 Browse this author →KAKEN DB |
| Authors(alt): | 津田, 一郎1 |
| Keywords: | Cantor coding | | chaotic itinerancy | | dynamic aspects of the brain | | dynamic associative memory | | episodic memory | | high-dimensional dynamical systems | | SCND attractors |
| Issue Date: | Jun-2001 |
| Journal Title: | Cambridge University Press |
| Volume: | 24 |
| Start Page: | 793 |
| End Page: | 810 |
| Publisher DOI: | 10.1017/S0140525X01000097 |
| Abstract: | Using the concepts of chaotic dynamical systems, we present an interpretation of dynamic neural activity found in cortical and subcortical areas. The discovery of chaotic itinerancy in high-dimensional dynamical systems with and without a noise term has motivated a new interpretation of this dynamic neural activity, cast in terms of the high-dimensional transitory dynamics among “exotic” attractors. This interpretation is quite different from the conventional one, cast in terms of simple behavior on low-dimensional attractors. Skarda and Freeman (1987) presented evidence in support of the conclusion that animals cannot memorize odor without chaotic activity of neuron populations. Following their work, we study the role of chaotic dynamics in biological information processing, perception, and memory. We propose a new coding scheme of information in chaos-driven contracting systems we refer to as Cantor coding. Since these systems are found in the hippocampal formation and also in the olfactory system, the proposed coding scheme should be of biological significance. Based on these intensive studies, a hypothesis regarding the formation of episodic memory is given. |
| Rights: | Copyright © 2001 Cambridge University Press |
| (Relation)replaces: | http://doi.org/10.14943/83639 |
| Type: | article |
| URI: | http://hdl.handle.net/2115/6084 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 津田 一郎
|
