Gibson bottom up/ direct theory of perception
Gibson’s bottom up approach is also known as data-driven processing, because perception begins with the stimulus itself. Processing is carried out in one direction from the retina to the visual cortex, with each successive stage in the visual pathway carrying out ever more complex analysis of the input.
Gibson argues that there is enough information in our environment to make sense of the world in a direct way. There is no need for processing as the information we receive about size, shape and distance is sufficiently detailed for us to interact directly with the environment. In this theory he also talks about movement, as we we move through our environment, objects which are close to us pass us by faster than those further away.