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  • Title: Symmetrical interaction of sex and expression in face classification tasks.
    Author: Aguado L, García-Gutierrez A, Serrano-Pedraza I.
    Journal: Atten Percept Psychophys; 2009 Jan; 71(1):9-25. PubMed ID: 19304593.
    Abstract:
    Classification of faces as to their sex or their expression--with sex and expression varying orthogonally--was studied in three experiments. In Experiment 1, expression classification was influenced by sex, with angry male faces being classified faster than angry female faces. Complementarily, sex classification was faster for happy than for angry female faces. In Experiment 2, mutual interaction of sex and expression was also found when the participants were asked to classify top and bottom face segments. In Experiment 3, a face inversion effect was found for both sex and expression classification of whole faces. However, a symmetrical interaction between sex and expression was again found. The results are discussed in terms of configural versus feature processing in the perception of face sex and expression and of their relevance to face perception models that postulate independent processing of different facial features.
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