Dynamics of Attention as Near Saddle-Node Bifurcation Behavior
نویسندگان
چکیده
In consideration of attention as a means for goal-directed behavior in non-stationary environments, we argue that the dynamics of attention should satisfy two opposing demands: long-term maintenance and quick transition. These two characteristics are contradictory within the linear domain. We propose the near saddlenode bifurcation behavior of a sigmoidal unit with self-connection as a candidate of dynamical mechanism that satisfies both of these demands. We further show in simulations of the 'bug-eat-food' tasks that the near saddle-node bifurcation behavior of recurrent networks can emerge as a functional property for survival in nonstationary environments.
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Near Saddle-Node Bifurcation Behavior as Dynamics in Working Memory for Goal-Directed Behavior
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