On the temporal organization of facial identity and expression analysis: Inferences from event-related brain potentials |
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Authors: | Ulla Martens Hartmut Leuthold Stefan R Schweinberger |
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Institution: | 1.Department for General Psychology,University of Osnabrück, FB 08/General Psychology I,Osnabrück,Germany;2.University of Glasgow,Glasgow,Scotland;3.University of Jena,Jena,Germany |
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Abstract: | In the present study, behavioral and electrophysiological markers of information processing—the lateralized readiness potential,
the N170, and the P300—were recorded in order to assess the functional and temporal organization of facial identity and expression
processing. A two-choice go/no-go task was used in which facial expression (happy vs. angry) determined response hand and
response execution depended on facial familiarity (familiar vs. unfamiliar). The duration of facial identity and expression
processing was manipulated in separate experiments. Together, the present findings in measures of overt and covert response
activation indicate that facial identity is analyzed in parallel with, and typically somewhat faster than, facial expression.
These data support a parallel model of face perception that assumes partial output from facial identity and expression processes
to motor activation processes. |
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Keywords: | |
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