Use of landmark features and geometry by children and adults during a two-dimensional search task

Three- to six-year-old children (n = 28) and adults (n = 46) participated in a two-dimensional search task that included geometry and feature conditions. During each of 24 trials, participants watched as a cartoon character hid behind one of three landmarks arranged in a triangle on a computer screen. The landmarks and character then disappeared and reappeared in the same or a new position on the screen. During feature condition trials participants could use unique features of the landmarks to locate the hidden character, while during geometry trials participants could only use the geometry of the triangle. In both conditions, adults’ performance was near ceiling while children’s performance was significantly worse. Children’s performance was worse in the geometry condition than in the feature condition but search accuracy improved with age for both types of information. Findings are considered in the context of the broader literature on spatial cognition and development.