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The development and neural basis of referential gaze perception

Atsushi Senju1, Mark H Johnson, Gergely Csibra

  • 1Birkbeck College, University of London, London, UK.

Social Neuroscience
|July 18, 2008
PubMed

Insights

Nine-month-old infants process gaze-object relations similarly to adults, showing neural sensitivity to referential gaze cues. This early processing may support the development of social cognition and theory of mind.

Area of Science:

  • Cognitive Neuroscience
  • Developmental Psychology
  • Infant Perception

Background:

  • Infants' sensitivity to others' eye gaze is crucial for social development.
  • Gaze following is considered a foundational element for developing theory of mind.
  • Understanding neural mechanisms of gaze processing in infants is key to early social cognition.

Purpose of the Study:

  • To investigate the neural correlates of gaze-object relations in adults and 9-month-old infants.
  • To compare how adults and infants process referential information from eye gaze shifts.
  • To explore the developmental trajectory of gaze processing and its link to theory of mind.

Main Methods:

  • Electroencephalography (ERPs) was used to record brain activity in adults and 9-month-old infants.
  • Participants viewed visual scenes with gaze shifts directed towards or away from a preceding object.
  • Analysis focused on event-related potential (ERP) components, specifically N330 in adults and N290/anterior N200 in infants.

Main Results:

  • Adults showed enhanced occipito-temporal ERP amplitudes (N330) for object-incongruent gaze shifts.
  • Infants exhibited a similar posterior ERP component (N290) for object-incongruent gaze shifts.
  • Infants displayed an early frontal ERP component (anterior N200) for object-congruent gaze shifts, suggesting rapid processing of social cues.

Conclusions:

  • By 9 months, infants encode referential gaze information similarly to adults.
  • Early infant processing of congruent gaze may facilitate attention sharing and social learning.
  • These findings suggest a neural basis for the development of theory of mind in infancy.

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