Get this from a library! The senses considered as perceptual systems. [James J Gibson]. The Senses Considered as Perceptual. Search for perceptual invariants. Professor Gibson has certainly proven his point, namely that ‘A perceptual system hunts.

Summary: Affordance theory states that the world is perceived not only in terms of object shapes and spatial relationships but also in terms of object possibilities for action (affordances) — perception drives action. Originators: J. Gibson (1904-1979) Keywords: Affordances, direct perception, ecological Affordance Theory (J. Gibson) American psychologist James Jerome Gibson was influential in changing the way we consider visual perception. According to his theory, perception of the environment inevitably leads to some course of action [1][2]. Affordances, or clues in the environment that indicate possibilities for action, are perceived in a direct, immediate way with no sensory processing.

Examples include: buttons for pushing, knobs for turning, handles for pulling, levers for sliding, etc. Based upon Gestalt theories, Affordance Theory has various implications for design, human-computer interaction, ergonomics, visualization, etc. Some believe that good design makes affordances explicit. For more information, see: • Don Norman’s book:. An updated classic, with basic rules of design explained like: make things visible, exploit natural relationships that couple function and control, and make intelligent use of constraints. Good examples of affordance theory. • Schlatter and Levinson’s book:.

A practical, hands-on guide to visual design. Highly recommended for its clarity and relevant examples. References • Gibson, J. The senses considered as perceptual systems. The perception of the visual world.

Gibson’s approach to. The study of perception emphasizes the way an active observer picks up information from the environment. The central postulates of Gibson’s approach are that (1) visual space is defined by information (such as texture gradients) contained on environmental surfaces, (2) the crucial information for perception is information that remains invariant as an observer moves through the environment, and (3) this invariant information is picked up directly, so that no intervening mental processes are necessary for visual perception. This paper summarizes Gibson’s approach as it is stated in his three books, Perception of the Visual World (1950), The Senses Considered as Perceptual Systems (1966) and The Ecological Approach to Visual Perception (1979) and evaluates the final form of his approach described in his third, and last, book. Wikipedia tau.