期刊
PSYCHOLOGICAL REVIEW
卷 123, 期 3, 页码 305-323出版社
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/rev0000029
关键词
perception and action; perceptual-motor control; dynamical systems; self-organization; driving
Behavioral dynamics is a framework for understanding adaptive behavior as arising from the self-organizing interaction between animal and environment. The methods of nonlinear dynamics provide a language for describing behavior that is both stable and flexible. Behavioral dynamics has been criticized for ignoring the animal's sensitivity to its own capabilities, leading to the development of an alternative framework: affordance-based control. Although it is theoretically sound and empirically motivated, affordance-based control has resisted characterization in terms of nonlinear dynamics. Here, we provide a dynamical description of affordance-based control, extending behavioral dynamics to meet its criticisms. We propose a general modeling strategy consistent with both theories. We use visually guided braking as a representative behavior and construct a novel dynamical model. This model demonstrates the possibility of understanding visually guided action as respecting the limits of the actor's capabilities, while still being guided by informational variables associated with desired states of affairs. In addition to such hard constraints on behavior, our framework allows for the influence of soft constraints such as preference and comfort, opening a new area of inquiry in perception-action dynamics.
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