perception Free Essay, Term Paper and Book Report
What are the strengths and weaknesses of the view that perception can be explained by notions of 'cues', 'schemas' 'unconscious inferences' and 'hypotheses'?"
Eyes are the organs that provide visual sensory input to the brain. Light from the outside world reflects off objects and passes into the eye through the pupil. It is focused by a lens then strikes the retina at the back of the eye. The retina is effectively a two dimensional array of cells. These cells are photosensitive, and output different signals to the brain according to the type of light that stimulates them. The retina therefore provides, in essence, a two dimensional image, which is referred to as the proximal stimulus or retinal image. The question of perception asks: "How does this retinal image become the world we visually experience inside our head?. There must be some kind of a system at work, and as psychologists we want to find out what the properties of that system are.
Helmholtz (1821-1849) pioneered a 'constructivist' approach (also termed 'traditional cognitivist' or 'top down') to understanding visual......
Word Count: 2272
Page Count: 9 (250 words a page / double spaced)
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