Preschoolers use emotional reactions to infer relations: The case of ownership

Preschoolers and adults metonymically extend proper names to owned objects

Three preregistered experiments, conducted in 2021, investigated whether English-speaking American preschoolers (N = 120; 4-6 years; 54 females, predominantly White) and adults (N = 80; 18-52 years; 59 females, predominantly Asian) metonymically extend owners' names to owned objects-an extension not typically found in English. In Experiment 1, 5- and 6-year-olds and adults extended names to owned objects over duplicates (d = 0.34 in children; d = 1.13 in adults). In Experiment 2, 5- and 6-year-olds and adults extended names to owned over borrowed objects (d = 1.37 in children; d = 4.34 in adults). Experiment 3 replicated this finding with 4-year-olds (d = 0.43). Thus, English-speaking preschoolers can acquire semantic generalizations, even those not present in their language.

Emotion as Information in Early Social Learning

The majority of research on infants’ and children’s understanding of emotional expressions has focused on their abilities to use emotional expressions to infer how other people feel. However, an emerging body of work suggests that emotional expressions support rich, powerful inferences not just about emotional states but also about other unobserved states, such as hidden events in the physical world and mental states of other people (e.g., beliefs and desires). Here we argue that infants and children harness others’ emotional expressions as a source of information for learning about the physical and social world broadly. This “emotion as information” framework integrates affective, developmental, and computational cognitive sciences, extending the scope of signals that count as “information” in early learning.

Ownership Matters: People Possess a Naïve Theory of Ownership

Ownership is at the heart of people's daily activities and has been throughout history. People consider ownership when acting on objects, engaging in financial matters, and assessing the acceptability of actions. We propose that people's understanding of ownership depends on an early-emerging, causally powerful, naïve theory of ownership. We draw on research from multiple disciplines to suggest that, from childhood, a naïve theory of ownership includes ontological commitments, causal-explanatory reasoning, and unobservable constructs. These components are unlikely to stem from other core theories or from noncausal representations. We also address why people might have a naïve theory of ownership, how it develops across the lifespan, and whether aspects of this theory may be universal despite variation across cultures and history.

Using versus liking: Young children use ownership to predict actions but not to infer preferences

Three experiments show that young children (N = 384) use ownership to predict actions but not to infer preferences. In Experiment 1, 3- to 6-year-olds considered ownership when predicting actions but did not expect it to trump preferences. In Experiment 2, 4- and 5-year-olds, but not 3-year-olds, used ownership to predict actions, and 5-year-olds grasped that an agent would use his or her own property despite preferring someone else's. This experiment also showed that relating an agent to an object interfered with 3- and 4-year-olds' judgments that a more attractive object is preferred. Finally, Experiment 3 found that 3- and 4-year-olds do not believe that owning an object increases regard for it. These findings are informative about the kinds of information children use to predict actions and the inferences they make from ownership. The findings also reveal specificity in how children use ownership to make judgments about others, and suggest that children more closely relate ownership to people's actions than to their desires.