“…It is generally understood to refer to a tendency towards regularity, symmetry, and simplicity, or as Koffka (1935) formulated it for vision: "Of several geometrically possible organizations that one will actually occur which possesses the best, the most stable shape" (p. 138). Building on this Gestaltist idea and on seminal work by, for instance, MacKay (1950), Hochberg and McAlister (1953), Attneave (1954), and Garner (1962), structural coding began as a competence model (Leeuwenberg, 1968), but nowadays, it also includes performance (van der Helm, 2012(van der Helm, , 2014(van der Helm, , 2015a.…”