Abstract
Previous work suggests that preschoolers often misunderstand metaphors. However, some recent studies demonstrate that preschoolers can represent abstract relations, suggesting that the cognitive foundations of metaphor comprehension may develop earlier than previously believed. The present experiments used novel paradigms to explore whether preschoolers (N = 200; 4-5 years; 100 males, 100 females; predominantly White) can understand metaphors based on abstract, functional similarities. In Experiment 1, preschoolers and adults (N = 64; 18-41 years; 25 males, 39 females; predominantly White) rated functional metaphors (e.g., "Roofs are hats"; "Tires are shoes") as "smarter" than nonsense statements (e.g., "Boats are skirts"; "Pennies are sunglasses") in a metalinguistic judgment task (d = .42 in preschoolers; d = 3.06 in adults). In Experiment 2, preschoolers preferred functional explanations (e.g., "Both keep you dry") over perceptual explanations (e.g., "Both have pointy tops") when interpreting functional metaphors (e.g., "Roofs are hats") (d = .99). In Experiment 3, preschoolers preferred functional metaphors (e.g., "Roofs are hats") over nonsense statements (e.g., "Roofs are scissors") when prompted to select the "better" utterance (d = 1.25). Moreover, over a quarter of preschoolers in Experiment 1 and half of preschoolers in Experiment 3 explicitly articulated functional similarities when justifying their responses, and the performance of these subsets of children drove the success of the entire sample in both experiments. These findings demonstrate that preschoolers can understand metaphors based on abstract, functional similarities.