Perception of Novel Faces: The Parts Have it!

Lobmaier, Janek S.; Mast, Fred W. (2007). Perception of Novel Faces: The Parts Have it! Perception, 36(11), pp. 1660-1673. Pion 10.1068/p5642

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It has been suggested that, as a result of expertise, configural information plays a predominant role in face processing. We investigated this idea using novel and learned faces. In experiment 1, sixteen participants matched two subsequently presented blurred or scrambled faces, which could be either upright or inverted, in a sequential same—different matching task. By means of blurring, featural information is hampered, whilst scrambling disrupts configural information. Each face was unfamiliar to the participants and was presented for 1000 ms. An ANOVA on the d' values revealed a significant advantage for scrambled faces. In experiment 2, fourteen participants were tested with the same design, except that the second face was always intact. Again, the ANOVA on the d' values revealed a significant advantage for scrambled faces. In experiment 3 half of the faces were learned in a familiarisation block prior to the experiment. The ANOVA of these d' values revealed a significant interaction of familiarity and condition, showing that blurred stimuli were better recognised when the faces were familiar. These results suggest that recognition of novel faces, compared to learned faces, relies relatively more on the processing of featural information. In the course of familiarisation the importance of configural information increases.

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