Task: Text Categorization
Input (English): A key development of its early history was the discovery of an optical illusion in which two still images, flashed at an appropriate interval, would appear to a viewer to be in motion. This phi phenomenon was one of the first discoveries that led this school's founders to oppose previous atomistic views of perception. Its proponents' later work led to the formulation of several laws of organization that noted that humans tend to group items by proximity and similarity, fill in gaps in incomplete figures, and perceive multiple items in as simple a way as possible. Founded by Wertheimer, Kohler and Koffka, FTP, name this school of psychology characterized by emphasis on the whole rather the sum of parts.
Output (English): Social Science