Gibson
James J. Gibson, too, stressed the importance of the environment, in particular, the (direct) perception of how the environment of an organism affords various actions to the organism. Thus, an appropriate analysis of the environment was crucial for an explanation of perceptually guided behaviour. He argued that animals and humans stand in a 'systems' or 'ecological' relation to the environment, such that to adequately explain some behaviour it was necessary to study the environment or niche in which the behaviour took place and, especially, the information that 'epistemically connects' the organism to the environment.
It is Gibson's emphasis that the foundation for perception is ambient, ecologically available information – as opposed to peripheral or internal sensations – that makes Gibson's perspective unique in perceptual science in particular and cognitive science in general. The aphorism: "Ask not what's inside your head, but what your head's inside of" succinctly captures that point. Gibson's theory of perception is information-based rather than sensation-based and to that extent, an analysis of the environment (in terms of affordances), and the concomitant specificational information that the organism detects about such affordances, is central to the ecological approach to perception. Throughout the 1970s and up until his death in 1979, Gibson increased his focus on the environment through development of the theory of affordances - the real, perceivable opportunities for action in the environment, that are specified by ecological information.
Gibson rejected outright indirect perception, in favour of ecological realism, his new form of direct perception that involves the new concept of ecological affordances. He also rejected the emerging constructivist, information processing and cognitivist views that assume and emphasize internal representation and the processing of meaningless, physical sensations ('inputs') in order to create meaningful, mental perceptions ('output'), all supported and implemented by a neurological basis (inside the head).
His approach to perception has often been criticised and unfairly dismissed when compared to widely publicised advances made in the fields of neuroscience and visual perception by the computational and cognitive approaches.
However, developments in cognition studies which consider the role of embodied cognition and action in psychology can be seen to support his basic position.
Given that Gibson's tenet was that "perception is based on information, not on sensations", his work and that of his contemporaries today can be seen as crucial for keeping prominent the primary question of what is perceived (i.e., affordances, via information) – before questions of mechanism and material implementation are considered. Together with a contemporary emphasis on dynamical systems theory and complexity theory as a necessary methodology for investigating the structure of ecological information, the Gibsonian approach has maintained its relevance and applicability to the larger field of cognitive science.
Read more about this topic: Ecological Psychology
Famous quotes containing the word gibson:
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