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. 2014 Jan 22;9(1):e87146. doi: 10.1371/journal.pone.0087146

Figure 2. Mean fixation duration.

Figure 2

Mean fixation duration in the three blocks of the free visual exploration task, as measured at optimal and non-optimal times of the day for the participants. Error bars represent the standard error of the mean (SEM). Asterisks depict significant post-hoc tests (*p<.05).