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          Institute: MPI für biologische Kybernetik     Collection: Biologische Kybernetik     Display Documents



ID: 419938.0, MPI für biologische Kybernetik / Biologische Kybernetik
The contribution of different facial regions to the recognition of conversational expressions
Authors:Nusseck, M.; Cunningham, D.W.; Wallraven, C.; Bülthoff, H.H.
Date of Publication (YYYY-MM-DD):2008-06
Title of Journal:Journal of Vision
Volume:8
Issue / Number:8:1
Start Page:1
End Page:23
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The human face is an important and complex communication channel.
Humans can, however, easily read in a face not only identity
information, but also facial expressions with high accuracy. Here, we
present the results of four psychophysical experiments in which we
systematically manipulated certain facial areas in video sequences of
nine conversational expressions to investigate recognition performance
and its dependency on the motions of different facial parts. These
studies allowed us to determine what information is {it necessary}
and {it sufficient} to recognize the different facial
expressions. Subsequent analyses of the face movements and correlation
with recognition performance show that, for some expressions, one
individual facial region can represent the whole expression. In other
cases, the interaction of more than one facial area is needed to
clarify the expression. The full set of results is used to develop a
systematic description of the roles of different facial parts in the
visual perception of conversational facial expressions.
External Publication Status:published
Document Type:Article
Communicated by:Holger Fischer
Affiliations:MPI f�r biologische Kybernetik/Psychophysics (Dept. B�lthoff)
Identifiers:LOCALID:4599
URL:http://journalofvision.org/8/8/1/
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