Fig. 3: Differential Looking Score (DLS) for self-owned versus other-owned objects in 20- to 40-month-old children (N = 82) in Experiment 2.
From: The self-reference memory bias is preceded by an other-reference bias in infancy

There was evidence for a familiarity preference in the self-assigned objects and evidence against a preference in the other-assigned objects. On each box, the central mark indicates the median, and the bottom and top edges of the box the 25th and 75th percentiles. The whiskers extend to the most extreme data points.