Kelsey Lucca

Duke University | DU · Department of Psychology and Neuroscience

Evaluating whether someone's behavior is praiseworthy or blameworthy is a fundamental human trait. A seminal study by Hamlin and colleagues in 2007 suggested that the ability to form social evaluations based on third-party interactions emerges within the first year of life: infants preferred a character who helped, over hindered, another who tried...

The developmental importance of infant gesture use is well established, yet few investigations examine what adults can do to facilitate infant gestures. We used an event lag with pauses sequential analysis to generate an index of association between each adult interactional strategy and deictic infant gesture during ten‐minute play interactions wit...

Despite the vital role of curiosity-driven exploration in learning, our understanding of how to enhance children’s curiosity remains limited. Here, we tested whether hearing a strategic curiosity story with curiosity-promoting themes (e.g., strategically approaching uncertainty, adapting flexibly to new information) versus a control story with trad...

Across development, as children acquire a deeper understanding of their environment, they explore less and take advantage, or “exploit,” what they already know. Here, we test whether children also enforce exploration‐oriented search behaviors onto others. Specifically, we ask whether children are more likely to encourage a search agent to explore v...

The phenomenon of domesticated dogs looking to humans for information is ubiquitous, yet infrequently observed among other interspecies interactions. Dogs’ inclination to solicit information from humans is in large part a result of the two species’ shared social evolution and niche. Perhaps a more compelling aspect of this relationship is how dogs...

Despite the importance of persistence in early learning, we know little about how children reason about outcomes that result from their efforts. Here we examined the role of effort type (i.e., physical vs. cognitive) and intensity (i.e., high vs. low effort) in shaping children's decision making about effort‐based rewards. Five‐ to 7‐year‐olds ( N...

Infants are drawn to events that violate their expectations about the world: they look longer at physically impossible events, such as when a car passes through a wall. Here, we examined whether individual differences in infants’ visual preferences for physically impossible events reflect an early form of curiosity, and asked whether caregivers’ be...

Infancy researchers often use highly simplified, animated, or otherwise artificial stimuli to study infant’s understanding of abstract concepts including “causality” or even “prosociality”. The use of these simplified stimuli have led to questions about the validity of the resulting empirical findings. Do simplified stimuli effectively communicate...

Past research has shown that children are more likely to seek out and remember facts about kinds (e.g. “tarsiers hunt for birds”) than individuals (e.g. “this tarsier likes to sing”), underscoring the importance of kind-based information in human cognition. However, children also often care about and learn facts about individuals. What are, then, t...

Evaluating others’ actions as praiseworthy or blameworthy is a fundamental aspect of human nature. A seminal study published in 2007 suggested that the ability to form social evaluations based on third-party interactions emerges within the first year of life, considerably earlier than previously thought (Hamlin, Wynn, & Bloom, 2007). In this study,...

The ability to decide whether, when and how to try is central to human learning. We investigated whether infants can make rational inferences about when and how to try on a novel problem-solving task. After learning from an adult that the task was either easy, difficult or impossible to solve, infants varied in whether, when and how they tried base...

Infants' persistence in the face of challenges predicts their learning across domains. In older children, linguistic input is an important predictor of persistence: when children are praised for their efforts, as opposed to fixed traits, they try harder on future endeavors. Yet, little is known about the impact of linguistic input as individual dif...

Every day, young learners are confronted with challenges. The degree to which they persist in overcoming those challenges, and the different ways they persist, provides critical insights into the various cognitive, motoric, and affective processes that drive behavior. Here, we present a systematic overview of the methodologies that have been tradit...

Infants’ pointing gestures are clear and salient markers of their interest. As a result, they afford infants with a targeted and precise way of eliciting information from others. The current study investigated whether, similar to older children's question asking, infants’ pointing gestures are produced to obtain information. Specifically, in a sing...

Persistence is central to outcomes across a range of domains: the harder you try, the further you get. Yet relatively little is known about the developmental origins of persistence. Here, we highlight key reasons for a surge of interest in persistence in infancy and early childhood.

The cover image, by Kelsey Lucca et al., is based on the Short Report The development and flexibility of gaze alternations in bonobos and chimpanzees, DOI: 10.1111/desc.12598. Photo Credit: Jingzhi Tan.

Cost-benefit analyses are central to mature decision-making and behavior across a range of contexts. Given debates regarding the nature of infants' prosociality, we investigated whether 18-month-old infants' (N = 160) prosocial behavior is impacted by anticipated costs and benefits. Infants participated in a helping task in which they could carry e...

The ability to reason about fairness plays a defining role in the development of morality. Thus, researchers have long been interested in understanding when and how a sensitivity to fairness first develops. Here, we examined infants’ ability to use fairness information in selecting social partners. Using a novel experimental paradigm that combined...

Infants’ pointing gestures are a critical predictor of early vocabulary size. However, it remains unknown precisely how pointing relates to word learning. The current study addressed this question in a sample of 108 infants, testing one mechanism by which infants’ pointing may influence their learning. In Study 1, 18-month-olds, but not 12-month-ol...

How do toddlers learn the names of geometric forms? Past work suggests that preschoolers have fragmentary knowledge and that defining properties are not understood until well into elementary school. The current study investigates when children first begin to understand shape names and how they apply those labels to unusual instances. We tested 25-...