Abstract：
:In two behavioral experiments involving lateralized stimulus presentation, we tested whether one of the most commonly used measures of holistic face processing-the composite face effect-would be more pronounced for stimuli presented to the right as compared to the left hemisphere. In experiment 1, we investigated the composite face effect in a verbal identification task, similar to its original report (Young, Hellawell, & Hay, 1987). Aligning top and bottom halves of composite face stimuli led to performance decreases irrespective of hemifield, indicating holistic processing of comparable magnitude for inputs provided separately to either hemisphere. However, when matching of the same top parts was required in experiment 2, an alignment-dependent performance decrease was found for stimuli presented in the left, but not right visual field. These observations suggest that the right hemisphere dominates in early stages of holistic processing, as indexed by the composite face effect, but that later processes such as face identification and naming are based on unified representations that are independent of input lateralization. Moreover, the composite face effect may not rely on the exact same representation(s) when measured in matching and identification tasks.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Ramon M,Rossion Bdoi
10.1016/j.bandc.2011.10.009subject
Has Abstractpub_date
2012-02-01 00:00:00pages
7-13issue
1eissn
0278-2626issn
1090-2147pii
S0278-2626(11)00198-9journal_volume
78pub_type
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