253 citations · 3k across the 163 of their papers we have counts for
13 papers · 1 filter
Multiple-timescale Neural Networks: Generation of Context-dependent Sequences and Inference through Autonomous Bifurcations
Tomoki Kurikawa, Kunihiko Kaneko
Sequential transitions between metastable states are ubiquitously observed in the neural system and underlie various cognitive functions. Although a number of studies with asymmetr…
Repeated sequential learning increases memory capacity via effective decorrelation in a recurrent neural network
Tomoki Kurikawa, Omri Barak, Kunihiko Kaneko
Memories in neural system are shaped through the interplay of neural and learning dynamics under external inputs. By introducing a simple local learning rule to a neural network, w…
Robustness of spatial patterns in buffered reaction-diffusion systems and its reciprocity with phase plasticity
Tetsuhiro S. Hatakeyama, Kunihiko Kaneko
Robustness of spatial pattern against perturbations is an indispensable property of developmental processes for organisms, which need to adapt to changing environments. Although sp…
Discreteness-induced Transition in Catalytic Reaction Networks
Akinori Awazu, Kunihiko Kaneko
Drastic change in dynamics and statistics in a chemical reaction system, induced by smallness in the molecule number, is reported. Through stochastic simulations for random catalyt…
State Differentiation by Transient Truncation in Coupled Threshold Dynamics
Yoshinori Watanabe, Kunihiko kaneko
Dynamics with a threshold input--output relation commonly exist in gene, signal-transduction, and neural networks. Coupled dynamical systems of such threshold elements are investig…
Dynamic Relationship between Diversity and Plasticity of Cell types in Multi-cellular State
Hiroaki Takagi, Kunihiko Kaneko
Dynamics maintaining diversity of cell types in a multi-cellular system are studied in relationship with the plasticity of cellular states. First, we introduce a new theoretical fr…
Coupled map gas: structure formation and dynamics of interacting motile elements with internal dynamics
Tatsuo Shibata, Kunihiko Kaneko
A model of interacting motile chaotic elements is proposed. The chaotic elements are distributed in space and interact with each other through interactions depending on their posit…
Kinetic Origin of Heredity in a Replicating System with a Catalytic Network
Kunihiko Kaneko
The origin of heredity is studied as a recursive state in a replicating proto-cell consisting of many molecule species in mutually catalyzing reaction networks. Protocells divide w…
Symbiotic Sympatric Speciation: Compliance with Interaction-driven Phenotype Differentiation from a Single Genotype
Kunihiko Kaneko
A mechanism of sympatric speciation is presented based on the interaction-induced developmental plasticity of phenotypes. First, phenotypes of individuals with identical genotypes…
Dynamical Networks in Function Dynamics
Naoto Kataoka, Kunihiko Kaneko
As a first step toward realizing a dynamical system that evolves while spontaneously determining its own rule for time evolution, function dynamics (FD) is analyzed. FD consists of…
Origin of genetic information from minority control in a replicating system with mutually catalytic molecules
Kunihiko Kaneko, Tetsuya Yomo
As the first step in an investigation of the origin of genetic information, we study how some species of molecules are preserved over cell generations and play an important role in…
Evolution of genetic code through isologous diversification of cellular states
H. Takagi, K. Kaneko, T. Yomo
Evolution of genetic code is studied as the change in the choice of enzymes that are used to synthesize amino acids from the genetic information of nucleic acids. We propose the fo…
Theory of Robustness of Irreversible Differentiation in a Stem Cell System: Chaos hypothesis
Chikara Furusawa, Kunihiko Kaneko
Based on extensive study of a dynamical systems model of the development of a cell society, a novel theory for stem cell differentiation and its regulation is proposed as the ``cha…