Adaptive face coding and discrimination around the average face

Rhodes, Gillian, Maloney, Laurence T, Turner, Jenny and Ewing, Louise (2007) Adaptive face coding and discrimination around the average face. Vision Research, 47 (7). pp. 974-989. ISSN 0042-6989

Full text not available from this repository. (Request a copy)

Abstract

Adaptation paradigms highlight the dynamic nature of face coding and suggest that identity is coded relative to an average face that is tuned by experience. In low-level vision, adaptive coding can enhance sensitivity to differences around the adapted level. We investigated whether sensitivity to differences around the average face is similarly enhanced. Converging evidence from three paradigms showed no enhancement. Discrimination of small interocular spacing differences was not better for faces close to the average (Study 1). Nor was perceived similarity reduced for face pairs close to (spanning) the average (Study 2). On the contrary, these pairs were judged most similar. Maximum likelihood perceptual difference scaling (Studies 3 and 4) confirmed that sensitivity to differences was reduced, not enhanced, around the average. We conclude that adaptive face coding does not enhance discrimination around the average face.

Item Type: Article
Uncontrolled Keywords: face perception,adaptation,discrimination,average face
Faculty \ School: Faculty of Social Sciences > School of Psychology
Depositing User: Pure Connector
Date Deposited: 25 Feb 2016 15:00
Last Modified: 22 Apr 2020 01:06
URI: https://ueaeprints.uea.ac.uk/id/eprint/57292
DOI: 10.1016/j.visres.2006.12.010

Actions (login required)

View Item View Item