Top-down processing refers to the use of background information in pattern recognition. It always begins with a person‘s previous knowledge, and makes predictions due to this already acquired knowledge. We construct our perception of reality, and these perceptions are hypotheses or propositions based on past experiences and stored information. Given a paragraph written with difficult handwriting, it is easier to understand what the writer wants to convey if one reads the whole paragraph rather than reading the words in separate terms. The brain may be able to perceive and understand the gist of the paragraph due to the context supplied by the surrounding words.