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Upright or inverted, entire or exploded: right-hemispheric superiority in face recognition withstands multiple
Giulia Prete1, Daniele Marzoli1, Luca Tommasi1
1Department of Psychological Science, Health and Territory, University of Chieti-Pescara , Chieti , Italy.
Peerj
|December 9, 2015
Summary
This study confirms right-hemisphere superiority for face recognition, even with unfamiliar transformations like upside-down or "exploded" faces. This robust brain lateralization is key for processing social stimuli.
Area of Science:
- Cognitive Neuroscience
- Neuroscience
- Psychology
Background:
- Face recognition is a critical social function.
- Previous research indicates right-hemisphere dominance for face processing.
- The evolutionary importance of social stimuli influences cerebral specialization.
Purpose of the Study:
- To investigate right-hemispheric specialization in face recognition under novel conditions.
- To assess face identity matching with transformations that hinder recognition.
Main Methods:
- Utilized a divided visual field paradigm to examine hemispheric asymmetries.
- Employed upside-down rotation and spatial "explosion" transformations on faces.
- Tested matching of female and male faces under various transformation levels.
Main Results:
- Confirmed right-hemisphere superiority in face processing.
- Observed reduced identity recognition with increased "explosion" and upside-down faces.
- Found a female face matching advantage compared to male faces.
Conclusions:
- Right-hemispheric superiority for face processing is a robust lateralization, not solely due to expertise.
- Results suggest potential links to human right-handedness or early social interaction biases.
Keywords:
Divided visual field paradigmExploded facesFace matchingFace-inversion effectHemispheric asymmetriesMore Related Videos
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