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Unconscious face processing shows a different lateralisation pattern.

Shuai Chang1,2, Ling He1,2, Rong Jiang1,2

  • 1Philosophy and Social Science Laboratory of Reading and Development in Children and Adolescents (South China Normal University), Ministry of Education, Guangzhou, China.

Psychonomic Bulletin & Review
|August 31, 2023
PubMed
Summary
This summary is machine-generated.

Unconscious faces in the right visual field break through suppression faster. However, this advantage shifts to the left visual field when faces are consciously perceived or accompanied by other stimuli, revealing dynamic hemispheric interactions in face processing.

Keywords:
Binocular rivalryFace perceptionPerceptual awarenessVisual field lateralisation

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Visual Perception

Background:

  • Face perception is crucial for social interaction.
  • Previous research indicates a left-visual-field advantage for face recognition.
  • The role of visual field lateralization in unconscious face processing remains unclear.

Purpose of the Study:

  • To investigate visual field lateralization during unconscious face perception.
  • To compare processing patterns of unconscious versus conscious face stimuli.
  • To explore interhemispheric interactions in forming visual awareness of faces.

Main Methods:

  • Utilized interocular suppression techniques to present face stimuli unconsciously.
  • Employed behavioral tasks measuring breakthrough times from suppression.
  • Manipulated stimulus awareness and concurrent visual input across experiments.

Main Results:

  • Unconscious faces in the right visual field showed faster suppression breakthrough than in the left.
  • This right visual field advantage reversed to the left visual field when faces were consciously perceived or presented with other stimuli.
  • Demonstrated differential processing patterns between unconscious and conscious face stimuli.

Conclusions:

  • Unconscious face processing exhibits distinct lateralization compared to conscious face processing.
  • Dynamic interactions between cerebral hemispheres are critical for face visual awareness.
  • Findings contribute to understanding face processing lateralization and interhemispheric communication.