Gollin figure test

The Gollin figure test is a psychological test used to assess someone's implicit and explicit memory. Subjects are shown a series of drawings in a sequence, from least to most clear, and asked to identify the image. The object cannot possibly be identified in the first sketch, and most people must see several of the panels before they can identify it. On a retention test some time later, however, subjects identify the image sooner than they did on the first test, indicating some form of memory for the image. Amnesiac subjects also show improvement on this test, even though they do not recall taking the test before.