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6 - Embodied and Embedded: The Dynamics of Extracting Perceptual Visual Invariants

Published online by Cambridge University Press:  18 December 2013

Patrice Renaud
Affiliation:
University of Quebec at Outaouais
Sylvain Chartier
Affiliation:
University of Ottawa
Guillaume Albert
Affiliation:
University of Quebec at Outaouais
Stephen J. Guastello
Affiliation:
Marquette University, Wisconsin
Matthijs Koopmans
Affiliation:
Academy for Educational Development, New York
David Pincus
Affiliation:
Chapman University, California
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Summary

Perceptual Stability and Lability

Perception provides well-adapted organisms with the vital links they must establish between themselves and their environment. To do this, perception must simultaneously supply stable and reliable reference points about what the environment provides at the behavioral level and allow great flexibility in capturing information. Ideally, perception must be the agent of this compromise between stability and lability at any given time and place, in accordance with the transitory behavioral objectives that organisms target. The complexity and unpredictability of the act of perception, as well as the effect of continuity experienced at the phenomenal level, result from the interplay of these constraints. In this chapter, we present theories and a methodology to probe into the dynamics of perceptual–motor processes as they bear the emergence of perceptual constancy.

Visual Perception and Constancy of Position

Visual perception of space is what guides action in the visible world; it does so by specifying environmental features to organisms that will allow them to achieve their behavioral objectives in a mobile fashion. To fulfill this mission, visual perception must manage to keep the properties of external objects constant, despite the continuously changing projection of the images on the retina of the eye. Perceptual constancy is maintained by transcending the hiatus separating distal and proximal stimuli, that is, by bridging between the physical nature of the perceived object and the physiological stimulation of the retina.

Type
Chapter
Information
Chaos and Complexity in Psychology
The Theory of Nonlinear Dynamical Systems
, pp. 177 - 205
Publisher: Cambridge University Press
Print publication year: 2008

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