title: Center-surround organization of face-space: evidence from contrast-based face-priming.
abstract: 'Face-space' is an abstract concept of the multidimensional representation of faces. Faces of similar appearance are closer in face-space than dissimilar faces; however, it is not clear how representations interact. Examining contrast thresholds for facial recognition, we show that a 200 ms preview of a face facilitates recognition of the same face, but inhibits recognition of other faces, more so for the same ethnic group than for a different ethnic group. This suggests a center-surround organization in which facial representations close to the priming stimulus are more suppressed than those that are distant.
authors: Department of Ophthalmology and Visual Science, University of British Columbia, Vancouver, British Columbia, Canada.
authors: Shabnam
authors: S
authors: Rostamirad
authors: Jason J S
authors: JJ
authors: Barton
authors: Ipek
authors: I
authors: Oruç
mesh_terms: D000223:Adaptation, Psychological / Q000502:physiology; D000328:Adult; D001921:Brain / Q000502:physiology; D004192:Discrimination, Psychological / Q000502:physiology; D005006:Ethnicity; D005145:Face; D005260:Female; D006801:Humans; D008297:Male; D008606:Mental Processes; D008875:Middle Aged; D008959:Models, Neurological; D009483:Neuropsychological Tests; D010775:Photic Stimulation; D011601:Psychophysics; D021641:Recognition, Psychology / Q000502:physiology; D014796:Visual Perception / Q000502:physiology; D055815:Young Adult