gibsons bottom up theory
- Created by: georgialennard
- Created on: 18-04-15 10:51
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- Gibsons bottom up theory (1979)
- A01- optic array (changing patter of light that surrounds the active perceiver provides sufficient enough info for perception.
- the optic flow- the further away something from the fixed point, the more rapid the apparent movement towards us.
- the importance of movement. ecological aspects of perception- texture gradient. the role of invariants in perception- unchanging invariants supply us with info that is crucial for accurate perception
- making sense of the optic array- reasonance is how we make sense of broadcast information.
- affordance is the potential for action offered by objects; they afford opportunities for a particular action. the concept further links perception and movement.
- purpose of perception is the detection of useful info.
- making sense of the optic array- reasonance is how we make sense of broadcast information.
- A02- biological motion (johannson). time to contact- long jumoers/strides. innate perceptual abilities. gibsons theory can als explain visual illusions.
- strengths- highlights richness of info in the optic array. however it cant explain situation and culture. ie blind people. how would an african know that a letter box affords posting letters?
- IDA- nature/nurture - gregorys (nurture- ie experience), gibsons related t innate mechanisms (nature)
- real world application- concept of affordance successfully applied to the development of autonomous robots.
- A01- optic array (changing patter of light that surrounds the active perceiver provides sufficient enough info for perception.
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