Add a new page. edit this panel. Top-down and bottom-up theories of perception. Psychologists often distinguish between top-down and bottom-up approaches to information-processing. In top-down approaches, knowledge or expectations are used to guide processing.
Full Bed vs. Queen Bed. A full-size bed is sometimes called a âdouble bedâ or simply a âfull bedâ; it is bigger than the twin bed (a.k.a. single bed) and smaller than a queen-size bed. A full size bed is 54 inches wide and 75 inches long while queen size beds are 60 inches in width and 80 inches in length. 1 Dimensions.
Sometimes still called a double mattress, a full-size mattress is 53 inches wide, which is just 15 inches wider than a twin size (or single). For a couple sharing a bed, that leaves each partner only 27 inches of personal space -- or about the width of a crib.