“…Motion aftereffects have been known to decay much more slowly in the absence of a test presentation; this is known as the storage effect (e.g., Sekuler & Pantie, 1967;Spigel, 1962;Wohlgemuth, 1911). Similar storage phenomena have been reported in a contrast threshold elevation effect (Thompson & Movshon, 1978) and in figural aftereffects for adapt-to-test intervals up to tens of seconds depending on the duration of adaptation (e.g., Hammer, 1949;Ikeda & Obatani, 1953;Sagara & Ohyama, 1957).…”