Belief-based action prediction in preverbal infants
Victoria Southgate1, Angelina Vernetti
1Centre for Brain and Cognitive Development, Department of Psychological Sciences, Birkbeck, University of London, Malet Street, London WC1E 7HX, UK.
Cognition
|October 22, 2013
Summary
Six-month-old infants predict actions based on others' beliefs, not reality. This suggests early theory of mind abilities emerge by six months, using neural measures of action prediction.
Area of Science:
- Developmental Psychology
- Cognitive Neuroscience
- Infant Cognition
Background:
- Mindreading involves understanding others' beliefs and predicting behavior.
- Early infant sensitivity to mental states is debated.
- The developmental trajectory of theory of mind remains unclear.
Purpose of the Study:
- To investigate if 6-month-old infants understand the causal role of beliefs in action.
- To determine if infants predict actions based on an agent's beliefs.
- To explore early theory of mind development.
Main Methods:
- Utilized sensorimotor alpha suppression to measure motor cortex activation as an indicator of action prediction.
- Verified the paradigm and measure with adult participants.
- Tested infants' predictions based on an agent's false beliefs about an object's location.
Main Results:
- Infants predicted an agent would reach for a box when the agent falsely believed the object was inside.
- Infants did not predict action when the agent falsely believed the object was absent.
- Predictions were based on the agent's beliefs, not the infant's own knowledge.
Conclusions:
- Six-month-old infants demonstrate an understanding of belief-guided action.
- This suggests early theory of mind abilities are present by 6 months of age.
- Infants leverage sensitivity to others' minds for action prediction.
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