Fig. 1: Recognition memory performance and saccades.
From: Entorhinal grid-like codes for visual space during memory formation
A Examples of scenes that participants viewed during the study period (“old” scenes) and during the test period, together with novel ones (“new” scenes), are illustrated here with Creative Commons licensed images, as the original study stimuli cannot be published. B Recognition memory task used in the Donders and Vienna study. Note that in the Vienna study, participants viewed each scene for 3 s (study period) and could provide their answer for 2 s (test period). The Vienna study also incorporated an additional test period that was performed in the behavioral lab after one week (delayed test, not depicted in the figure). C Data points show the participant-specific d-prime values for both the Donders (orange, N = 46) and the Vienna study (pink, N = 32), and boxplots show the median (upper and lower borders mark the interquartile range, whiskers show minimum and maximum non-outlier values). The performance discrepancy between Donders and Vienna studies (Welch two-sample t-test, two-tailed, p < 0.0001) likely arose from the Vienna study including fewer scenes, no additional task during encoding, and no distractor task between study and test (s. Methods). D The scatter plot shows the Pearson correlation between the total number of saccades per participant (saccade frequency) and d-prime for the Donders study (two-tailed, N = 32, p = 0.003; for the Vienna study, see Supplementary Results S1, Supplementary Fig. S1A). The solid line indicates the regression fit, and the dashed lines mark the confidence interval (95% CI). *Significant at p < 0.05. Source data are provided as a Source Data file.
