A unified account of the effects of caricaturing faces

and Johnston, R. A. 1999. A unified account of the effects of caricaturing faces. Visual Cognition 6 (1) , pp. 1-42. 10.1080/713756800

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Abstract

Explanations of the caricature advantage (caricatured faces are recognized faster than veridicals) usually involve an encoded prototypical norm face (Rhodes, Brennan, & Carey, 1987). As an alternative to these, the present study describes a mathematical framework based on Valentine's (1991) exemplar-based model, which accounts for the caricature advantage without reference to an explicitly encoded norm face. This framework encodes faces in a multidimensional Voronoi diagram based on normally distributed face-space representations. The properties of this framework are investigated geometrically and computationally. It is demonstrated how a parallel processing system can extract a Voronoi diagram from multidimensional representations. The framework was able to account for many of the empirical findings on face recognition and caricaturization without extracting a norm face.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Psychology
Subjects:	B Philosophy. Psychology. Religion > BF Psychology
Publisher:	Taylor & Francis
ISSN:	1350-6285
Last Modified:	21 Oct 2022 09:11
URI:	https://orca.cardiff.ac.uk/id/eprint/35540

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