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 size beds are 54â³ (137 cm) wide and 75â³ (191 cm) long, making them smaller than a standard queen size bed that measures 60â³ x 80â³ (152 cm x 203 cm). The following picture is a handy reference for â and easy visual representation of â all the different bed sizes: twin, full, queen, king and California king size.
A three-quarter bed measures 48 inches wide by 75 inches long. Three-quarter beds are the intermediate size between a full bed and a twin bed. Both twin and full beds are 75 inches long, but twin beds are 39 inches wide, while full beds are 54 inches wide.