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  Comparing the other-race-effect and congenital Prosopagnosia using a three-experiment test battery

Esins, J., Schultz, J., Kim, B., Wallraven, C., & Bülthoff, I. (2012). Comparing the other-race-effect and congenital Prosopagnosia using a three-experiment test battery. Poster presented at 8th Asia-Pacific Conference on Vision (APCV 2012), Incheon, South Korea.

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APCV-2012-Poster-Esins.pdf (beliebiger Volltext), 563KB
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http://journals.sagepub.com/doi/abs/10.1068/if688 (Verlagsversion)
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 Urheber:
Esins, J1, 2, Autor           
Schultz, J1, 2, Autor           
Kim, BR, Autor
Wallraven, C, Autor           
Bülthoff, I1, 2, Autor           
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Zusammenfassung: Congenital prosopagnosia, an innate impairment in recognizing faces, as well as the other-race-effect, the disadvantage in recognizing faces of foreign races, both influence face recognition abilities. Here we compared both phenomena by testing three groups: German congenital prosopagnosics (cPs), unimpaired German and unimpaired South Korean participants (n=23 per group), on three tests with Caucasian faces. First we ran the Cambridge Face Memory Test (Duchaine Nakayama, 2006 Neuropsychologia 44 576-585). Participants had to recognize Caucasian target faces in a 3AFC task. German controls performed better than Koreans (p=0.009) who performed better than prosopagnosics (p=0.0001). Variation of the individual performances was larger for cPs than for Koreans (p = 0.028). In the second experiment, participants rated the similarity of Caucasian faces (in-house 3D face-database) which differed parametrically in features or second order relations (configuration). We found differences between sensitivities to change type (featural or configural, p=0) and between groups (p=0.005) and an interaction between both factors (p = 0.019). During the third experiment, participants had to learn exemplars of artificial objects (greebles), natural objects (shells), and faces and recognize them among distractors. The results showed an interaction (p = 0.005) between stimulus type and participant group: cPs where better for non-face stimuli and worse for face stimuli than the other groups. Our results suggest that congenital prosopagnosia and the other-race-effect affect face perception in different ways. The broad range in performance for the cPs directs the focus of our future research towards looking for different forms of congenital prosopagnosia.

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 Datum: 2012-10
 Publikationsstatus: Erschienen
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 Identifikatoren: BibTex Citekey: EsinsSKWB2012
DOI: 10.1068/if688
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Veranstaltung

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Titel: 8th Asia-Pacific Conference on Vision (APCV 2012)
Veranstaltungsort: Incheon, South Korea
Start-/Enddatum: 2012-07-13 - 2012-07-15

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Titel: i-Perception
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 3 (9) Artikelnummer: P2-29 Start- / Endseite: 688 Identifikator: -