Figure 2
From: Cognitive load influences oculomotor behavior in natural scenes

Distribution of maximum N-back achieved by each subject. Top plot represents a histogram of maximum N-back achieved by each participant. Bottom plot represents a box and whisker summary of the same data. The red line in the boxplot represents the median. The blue box represents the interquartile range (IQR) where the lower bound signifies the 25th percentile (Q1) and the upper bound signifies the 75th percentile (Q3). The lower bound of the black line represents the minimum value, and the upper bound of the black line represents the maximum value.