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Infants' neural processing of positive emotion and eye gaze

Stefanie Hoehl1, Tricia Striano

  • 1University of Heidelberg, Heidelberg, Germany. stefanie.hoehl@psychologie.uni-heidelberg

Social Neuroscience
|June 30, 2009
PubMed

Insights

Infants pay more attention to objects when a happy face looks at them. However, a happy expression does not enhance later processing of the object itself, unlike previous findings with fearful faces.

Area of Science:

  • Developmental psychology
  • Cognitive neuroscience
  • Social cognition

Background:

  • Infants' neural processing of novel objects is enhanced by fearful faces directing gaze.
  • The role of positive emotions in modulating infant attention to objects requires further investigation.

Purpose of the Study:

  • To determine if positive emotions (happy faces) enhance infant neural processing of objects, similar to fearful faces.
  • To investigate whether gaze direction moderates the effect of emotional faces on object processing in infants.

Main Methods:

  • Event-related potentials (ERPs) were recorded from 3-month-old infants.
  • Infants viewed happy and neutral faces gazing towards or away from objects.
  • Object-alone processing was assessed after face-object presentation.

Main Results:

  • Happy faces directed towards objects elicited increased neural responses compared to neutral faces.
  • No difference in neural response was observed for happy versus neutral faces gazing away from objects.
  • Infants showed increased attention (negative central component) to objects previously cued by a neutral face gazing away.

Conclusions:

  • Infants allocate attention to objects based on gaze direction from emotional faces.
  • Positive emotional expressions (happy faces) do not enhance subsequent object processing in young infants.
  • Findings contribute to understanding early social cognitive development and attention allocation.

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