Fig. 5. Changes in object part inclusion and emphasis over development.

Proportion of drawings that included a given object part for each object category as a function of children’s age (see Methods), analyzing annotations from N = 1824 drawings where annotators agreed on part labels (see Methods). The size of each dot reflects the average emphasis (proportion of stroke length relative to the entire drawing) for each object part within each bin (max plotted part emphasis = 0.5); the top five most frequent object parts are included for each category excluding generic “body/head” parts.