Journal
QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY
Volume 65, Issue 4, Pages 760-772Publisher
PSYCHOLOGY PRESS
DOI: 10.1080/17470218.2011.636822
Keywords
Face processing; Self-face; Categorical perception; Configural and featural processing; Robust representation
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Categorical perception of robustly represented faces (self, friend) and unfamiliar faces is investigated, and the relative roles of configural and featural information are examined. Participants performed identification and discrimination tasks on morph series containing the self-face and a friend's face (self-Friend 1), two friends' faces (Friend 2-Friend 3), and two unfamiliar faces (Unfamiliar 1-Unfamiliar 2), presented in upright and inverted orientations. For upright faces, categorical perception effects were observed for both familiar morph series but not for the unfamiliar morph series, suggesting that robust representation is a requirement for categorical perception in facial identity. For inverted faces, categorical perception was observed for the self-Friend 1 morph series only. This suggests that categorical perception is tied to configural processing for familiar non-self-faces, but can be observed for self-faces during featural processing-consistent with evidence that self-face representations contain strong configural and featural components. Finally, categorical perception is not enhanced by the presence of the self-face relative to other familiar faces when upright, but shows a trend of being enhanced for self-faces when inverted, adding to the debate on the ways in which robustly represented faces can elicit categorical perception.
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