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Longitudinal Continuity in Understanding and Production of Giving-Related Behavior From Infancy to Childhood
Joshua Juvrud1, Marta Bakker1, Katharina Kaduk2
1Uppsala University.
Insights
Infants’ neural processing of giving gestures at 9 months predicts their later giving behavior at 2 years. Individual differences in early giving understanding are stable and not linked to other social skills.
Area of Science:
- Developmental Psychology
- Cognitive Neuroscience
- Infant Behavior
Background:
- Early understanding of object transfer (giving) is present in infants.
- Individual differences in infant giving abilities and their developmental trajectories are not well understood.
Purpose of the Study:
- To investigate individual differences in 9-month-old infants' understanding and production of giving.
- To examine the developmental continuity of giving behaviors from infancy to toddlerhood.
- To explore the relationship between early giving skills and other sociocognitive abilities.
Main Methods:
- Event-related potentials (ERPs) measured neural processing of a "give-me" gesture in 59 nine-month-olds.
- Pupil dilation assessed reactions to inappropriate responses to the "give-me" gesture.
- Giving behavior was observed at 2 years of age.
Main Results:
- Infants with clearer neural processing of the "give-me" gesture showed stronger reactions to inappropriate responses.
- These infants were more likely to engage in giving behavior at 2 years.
- Giving behavior development was independent of language, gaze-following, and helping behaviors.
Conclusions:
- Early neural and behavioral indicators of giving understanding predict later production of giving behavior.
- There is developmental continuity in the understanding and production of giving from infancy.
- Giving is a fundamental human behavior with early developmental roots.
Abstract:
Infants have an early understanding of giving (the transfer of an item by one agent to another), but little is known about individual differences in these abilities or their developmental outcomes. Here, 9-month-olds (N = 59) showing clearer neural processing (Event-related potential, ERP) of a give-me gesture also evidenced a stronger reaction (pupil dilation) to an inappropriate response to a give-me gesture, and at 2 years were more likely to give in response to a give-me gesture. None of the differences in understanding and production of giving-related behaviors were associated with other sociocognitive variables investigated: language, gaze-following, and nongiving helping. The early developmental continuity in understanding and production of giving behavior is consistent with the great importance of giving for humans throughout the life span.
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