The Facespan-the perceptual span for face recognition.

Détails

ID Serval
serval:BIB_9C47B7B72B90
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
The Facespan-the perceptual span for face recognition.
Périodique
Journal of vision
Auteur⸱e⸱s
Papinutto M., Lao J., Ramon M., Caldara R., Miellet S.
ISSN
1534-7362 (Electronic)
ISSN-L
1534-7362
Statut éditorial
Publié
Date de publication
01/05/2017
Peer-reviewed
Oui
Volume
17
Numéro
5
Pages
16
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
In reading, the perceptual span is a well-established concept that refers to the amount of information that can be read in a single fixation. Surprisingly, despite extensive empirical interest in determining the perceptual strategies deployed to process faces and an ongoing debate regarding the factors or mechanism(s) underlying efficient face processing, the perceptual span for faces-the Facespan-remains undetermined. To address this issue, we applied the gaze-contingent Spotlight technique implemented in an old-new face recognition paradigm. This procedure allowed us to parametrically vary the amount of facial information available at a fixated location in order to determine the minimal aperture size at which face recognition performance plateaus. As expected, accuracy increased nonlinearly with spotlight size apertures. Analyses of Structural Similarity comparing the available information during spotlight and natural viewing conditions indicate that the Facespan-the minimum spatial extent of preserved facial information leading to comparable performance as in natural viewing-encompasses 7° of visual angle in our viewing conditions (size of the face stimulus: 15.6°; viewing distance: 70 cm), which represents 45% of the face. The present findings provide a benchmark for future investigations that will address if and how the Facespan is modulated by factors such as cultural, developmental, idiosyncratic, or task-related differences.
Mots-clé
Face/physiology, Facial Recognition/physiology, Female, Fixation, Ocular/physiology, Humans, Male, Psychomotor Performance/physiology, Reaction Time, Saccades/physiology, Visual Perception/physiology, Young Adult
Pubmed
Web of science
Open Access
Oui
Création de la notice
29/03/2022 17:14
Dernière modification de la notice
29/03/2022 17:42
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