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“Recent work provides evidence that expectations regarding a fair (i.e., equal) distribution of goods and resources arise sometime in the second year of life. To investigate the developmental trajectory of fairness expectations, and their potential relation to prosocial behavior, infants participated in a violation-of-expectancy (VOE) paradigm designed to assess expectations regarding how resources are typically distributed, and in a sharing task, an informational helping task, and an instrumental helping task. Infants’

expectations regarding resource distribution showed age-related learn more changes between 12 and 15 months, with only 15-month-old infants showing greater attention to unfair (unequal) over fair (equal) outcomes in the VOE. Individual differences in infants’

sensitivity to unfair outcomes were related to infants’ willingness to share a preferred toy. In contrast, helping behavior was unrelated to infants’ sensitivity to unfair outcomes and did not vary according to whether infants shared a preferred or non-preferred toy during the sharing task. Our findings suggest a developmental transition in expectations regarding how resources are distributed from 12 to 15 months of age, linked to infants’ sharing behavior, suggesting that such expectations are learned through experience. Our results also contribute to the ongoing discussion regarding how best to assess the construct of

prosociality in infancy. “
“Infants (n = 24, mean age 13 months and n = 24, mean age 19 months) were Tideglusib tested on an extension of the method introduced by Tomasello and Haberl (2003) Enzalutamide concentration to examine the understanding of another person’s interest in a novel object. Four objects were presented serially. For two objects, infants played with an experimenter. The infant played with one object alone, and the experimenter played with one object alone. Finally, all four objects were presented together, and the experimenter excitedly asked for one without indicating which. Results showed that younger infants tended to chose the object that they had not yet played with, whereas older infants were significantly more likely to choose the object that the experimenter had not yet played with. These results are discussed in the context of research on the development of understanding diversity of simple object-directed attitudes in the second year of life. “
“The degree to which infants’ current actions are influenced by previous action is fundamental to our understanding of early social and cognitive competence. In this study, we found that infant gazing manifested notable temporal dependencies during interaction with mother even when controlling for mother behaviors. The durations of infant gazes at mother’s face were positively predicted by the durations of the two previous gazes at mother’s face.