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Twofold advantages of face processing with or without visual awareness.

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The brain processes faces faster than other objects, whether visible or not. This advantage relies on overall shape for invisible faces but specific features for visible ones.

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception

Background:

  • Face processing exhibits unique advantages over other object categories, even without visual awareness.
  • Understanding the underlying mechanisms of these face processing advantages is crucial.

Purpose of the Study:

  • To investigate the mechanisms behind visible and invisible face processing advantages.
  • To differentiate contributions of global configuration versus local attributes in face perception.

Main Methods:

  • Compared perceptual processing of genuine faces, face-like objects, and non-face-like objects.
  • Utilized interocular rivalry and crowding paradigms to assess invisible face perception.
  • Evaluated illusory face perception from face-like objects.

Main Results:

  • Illusory face perception from face-like objects primarily relies on global configuration.
  • Invisible face processing showed comparable advantages for real faces and face-like objects.
  • Visible face advantage was specific to genuine faces, depending on local attributes.

Conclusions:

  • Face processing privilege is twofold: global configuration for invisible faces, local attributes for visible faces.
  • Global configuration triggers face processing advantage without awareness.
  • Awareness shifts face processing advantage to rely on specific facial features.