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Infants rapidly detect human faces in complex naturalistic visual scenes.

David J Kelly1, Sofia Duarte1, David Meary2

  • 1School of Psychology, Keynes College, University of Kent, Canterbury, Kent, UK.

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|March 22, 2019
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Infants can detect faces in complex scenes from an early age, even when not visually prominent. This study shows naturalistic scenes better reveal infants' face detection abilities than artificial ones.

Keywords:
eye movementsface detectioninfancyvisual search

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Area of Science:

  • Developmental Psychology
  • Cognitive Neuroscience
  • Visual Perception

Background:

  • Infants show a preference for faces from birth.
  • Previous studies often used simplified stimuli, potentially underestimating infant abilities.
  • The ecological validity of face perception research in infants is debated.

Purpose of the Study:

  • To investigate infant face detection in naturalistic complex scenes.
  • To compare infant face detection performance in naturalistic versus artificial settings.
  • To explore developmental changes in face detection from 3 to 12 months.

Main Methods:

  • Infants aged 3-12 months viewed complex visual scenes.
  • Half the scenes contained a person; the other half did not.
  • Infant eye movements were tracked to measure attention and detection.

Main Results:

  • Infants detected and oriented to faces in complex scenes, even non-salient ones.
  • A developmental improvement in face detection and interest was observed.
  • All infants showed differential eye movements when viewing scenes with or without people, indicating sensitivity.

Conclusions:

  • Infant face detection is more proficient in naturalistic settings than previously thought.
  • Artificial stimuli used in prior research may have underestimated infant face detection capabilities.
  • Infants possess innate abilities to detect social stimuli in complex environments.