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The Face in the Mirror: The Electrophysiological Basis of Self-identity

 Albert Porterfield and James Tanaka
  
 

Abstract:
Abstract: Considerable research has focused on the neural processes distinguishing face recognition from other types of object recognition. However, less attention has been directed toward understanding the processes underlying the identification of specific faces within the face recognition system. The goal of this research was to examine the neurophysiological correlates associated with the visual processing of one's own face versus the processing of other faces, both familiar and unfamiliar. Event-related scalp potentials were recorded while college participants passively viewed digitized facial photographs of themselves, fellow classmates, and unfamiliar age-matched controls. The main result was that during the time window of 220 to 500 ms post-stimulus onset, own-face photographs elicited a larger positive deflection across frontal, central and parietal channels than did photographs of either familiar or unfamiliar faces. Thus, the neural response to one's own face was distinct from the response to other faces. This finding suggests that, within the face processing system, the representation of one's own face may hold a special status among the representations of other faces in memory.

 
 


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