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Categorical perception for unfamiliar faces. The effect of covert and overt face learning.

Kikutani, M and Roberson, D and Hanley, JR (2010) 'Categorical perception for unfamiliar faces. The effect of covert and overt face learning.' Psychological science : a journal of the American Psychological Society / APS, 21 (6). 865 - 872. ISSN 1467-9280

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Abstract

Robust findings show that categorical perception (CP) occurs in identification of familiar faces. CP has also been observed for unfamiliar morphed faces after sufficient learning of the original, unmorphed faces has taken place. We previously suggested that CP arises when the activation of inconsistent visual and verbal representations creates a conflict between perceptual and category information. In the present study, we conducted two experiments in which the endpoint faces of an unfamiliar morphed continuum were presented in either a covert training regime (famous vs. nonfamous judgments) or an overt training regime (previously seen vs. unseen judgments). In both experiments, participants' reaction times to repeated targets decreased relative to reaction times to control items during training. After overt training, CP was observed for the previously unfamiliar faces. No CP was observed for covertly trained faces. We conclude that individual faces must be explicitly categorized before CP can be established for the morphed continuum between them.

Item Type: Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Jim Jamieson
Date Deposited: 12 Nov 2011 20:25
Last Modified: 23 Jan 2019 00:17
URI: http://repository.essex.ac.uk/id/eprint/1189

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