What do you see in this picture?It is the the picture of Rat Man of Bugelski and Alampay (1961). It is a good instruemtn to exlaining about Bottom-Up processing and Top-Down processing.
Let me take "perception" for example. If you perceive something from date in the outside world through your senses, it is called Bottom-Up processing. And if you perceive something, using your previous knowledge and expections, it is called Top-Down processing. It's because something abstract is considerd as "Top, while something concrete is considered as down.
That is, Top-Down processing occurs any time a higher-level concept influences your interpretation of lower level sensory data. If you see a lot of pictures of human faces before you see the picture above, you get to think that picture is a man wearing a glasses, on the other hand, if you see a lot of pictures of animals before you see the picture above, you come to think that picture is a mice.
This is a good example of Top-Down processing, because you previous knowledge influenced your perception.
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