Fig. 1. Fixation-sequence reinstatement expresses spatiotemporal memory for scenes.

(A) During study, participants viewed scenes while eye-movement tracking recorded their visual fixation sequences. During test, participants viewed repeated or novel scenes with gaze-contingent revealing of scene content such that memory could guide viewing more so than peripheral perceptual information, which was masked. Reinstated fixations during test were coded on the basis of their temporal distance (lag) in the study sequence. Spatiotemporal reinstatement was identified in both forward (+1) and reverse (−1) directions. (B) Participants reinstated fixation sequences in forward and reverse directions, as indicated by the lag conditional viewing probability (lag-CVP) curve. Note that longer fixation-sequence reinstatement results in many +1 or −1 lags given this method of quantification, whereas lags >+1 or <−1 indicate jumping ahead or backward within sequences. Gray lines indicate individual participants. Image credit: K.C. Green, kcgreendotcom.com.