Figure 1. Example of eye movement patterns.

An example of eye movements from three participants. (a) A participant viewing a new scene. (b) A participant viewing a scene for the second time and classifying it as “known”. (c) A participant viewing the scene for a second time and classifying it as “remembered”. The examples demonstrate fewer and more clustered fixations (smaller inter-fixation distance) for “remembered” photos than “known” photos and new photos.