Covert face recognition relies on affective valence in congenital prosopagnosia

Bate, Sarah, Haslam, Catherine, Jansari, Ashok and Hodgson, Timothy L. (2009) Covert face recognition relies on affective valence in congenital prosopagnosia. Cognitive Neuropsychology, 26 4: 391-411. doi:10.1080/02643290903175004


Author Bate, Sarah
Haslam, Catherine
Jansari, Ashok
Hodgson, Timothy L.
Title Covert face recognition relies on affective valence in congenital prosopagnosia
Journal name Cognitive Neuropsychology   Check publisher's open access policy
ISSN 0264-3294
1464-0627
Publication date 2009-08-19
Year available 2009
Sub-type Article (original research)
DOI 10.1080/02643290903175004
Volume 26
Issue 4
Start page 391
End page 411
Total pages 21
Place of publication Abingdon, Oxon, United Kingdom
Publisher Routledge
Language eng
Abstract Dominant accounts of covert recognition in prosopagnosia assume subthreshold activation of face representations created prior to onset of the disorder. Yet, such accounts cannot explain covert recognition in congenital prosopagnosia, where the impairment is present from birth. Alternatively, covert recognition may rely on affective valence, yet no study has explored this possibility. The current study addressed this issue in 3 individuals with congenital prosopagnosia, using measures of the scanpath to indicate recognition. Participants were asked to memorize 30 faces paired with descriptions of aggressive, nice, or neutral behaviours. In a later recognition test, eye movements were monitored while participants discriminated studied from novel faces. Sampling was reduced for studied-nicecompared to studied-aggressive faces, and performance for studied-neutral and novel faces fell between these two conditions. This pattern of findings suggests that(a)positive emotion can facilitate processing in prosopagnosia, and (b) covert recognition may rely on emotional valence rather than familiarity.
Keyword Affective valence
Covert recognition
Face recognition
Prosopagnosia
Visual scanpath
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Psychology Publications
 
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Created: Fri, 15 Nov 2013, 20:11:12 EST by Catherine Haslam on behalf of School of Psychology